NORI Contract Area
−Removed: The information that follows relating to the NORI Contract Area of the CCZ is derived, for the most part, from, and in some instances is an extract from, the NORI Technical Report Summary prepared in compliance with the SEC Mining Rules.
+Added: The information that follows relating to the NORI Contract Area of the CCZ subject to the NORI Exploration Contract with the ISA is derived, for the most part, from, and in some instances is an extract from, NORI-D PFS and the TOML and NORI IA, both issued in August 2025 and prepared in compliance with the SEC Mining Rules.
Portions of the following information are based on assumptions, qualifications and procedures which are not fully described herein.
−Removed: Reference should be made to the full text of the NORI Technical Report Summary, which has been incorporated by reference as Exhibit 96.1 to this Annual Report.
−Removed: The NORI Technical Report Summary is incorporated herein by reference and made a part hereof.
−Removed: In the event that we determine that any modifying factors, estimates and other scientific and technical information in the report materially change, we may update or file a new technical report in the future.
−Removed: The NORI Contract Area is an exploration stage property.
+Added: Reference should be made to the full text of the NORI-D PFS and the TOML and NORI IA, which are incorporated by reference as Exhibit 96.1 and Exhibit 96.2, respectively, to this Annual Report.
+Added: Each of the Technical Reports are incorporated herein by reference and made a part hereof.
+Added: In the event that we determine that any modifying factors, estimates and other scientific and technical information in either Technical Report materially change, we may update or file a new technical report in the future.
+Added: NORI Area D is in the development stage and the other NORI contract areas are in the exploration stage.
Location of the NORI Area and access
9 unchanged sentences
All personnel and material will be transported to the project area by ship.
−Removed: See Section 3 of the NORI Technical Report Summary for further specific information of the location of the NORI Contract Area.
+Added: See Section 3 of the NORI-D PFS for further specific information of the location of the NORI Contract Area.
Tenements and permits
−Removed: See Business Regulations-The NORI Exploration Contract, Business Regulations-The NORI Sponsorship Agreement and Business Regulations- International Seabed Authority above for information related to tenements and permits in the NORI Contract Area.
+Added: See Business- Laws and Regulations-The NORI ISA Exploration Contract, Business- Laws and Regulations-The NORI Sponsorship Agreement and Business- Laws and Regulations- International Seabed Authority above for information related to tenements and permits in the NORI Contract Area.
NORI obligations and sponsorship
−Removed: See Business Regulations-The NORI Exploration Contract, Business Regulations-The NORI Sponsorship Agreement above for information related to this agreement in the NORI Contract Area.
+Added: See Business- Laws and Regulations-The NORI ISA Exploration Contract, Business- Laws and Regulations-The NORI Sponsorship Agreement above for information related to this agreement in the NORI Contract Area.
Royalties and taxes
−Removed: See Business Regulations-Royalties and taxes above for information with respect to our obligations for royalties and taxes in the NORI Contract Area.
+Added: See Business- Laws and Regulations-Royalties and Taxes above for information with respect to our obligations for royalties and taxes in the NORI Contract Area.
History of previous exploration activities in the NORI Contract Area
25 unchanged sentences
These sample data provide the basis of a database held by the ISA and were used initially to define the areas of the NORI application.
−Removed: See Section 5 of the NORI Technical Report Summary for further specific information of the history of previous exploration of the NORI Contract Area.
+Added: See Section 5 of the NORI-D PFS for further specific information of the history of previous exploration of the NORI Contract Area.
Geology and sampling
21 unchanged sentences
They can occur at any depth, but the highest concentrations have been found on abyssal plains between 4,000 and 6,000 mbsl.
−Removed: Data analysis in Section 9 of the NORI Technical Report Summary shows that nodule abundance variability is significantly higher than metal grades, suggesting that abundance estimation will be the key variable in mineral resource estimation.
+Added: Data analysis in Section 9 of the NORI-D PFS shows that nodule abundance variability is significantly higher than metal grades, suggesting that abundance estimation will be the key variable in mineral resource estimation.
NORI completed offshore exploration campaigns in 2012, 2013, 2018, 2019, 2020, 2022, 2023 and 2024.
4 unchanged sentences
● a total of 252 box core samples collected using a 0.75 square meters box corer, mainly on a 10 kilometers by 10 kilometers square grid were used for resource evaluation;
+Added: ● additional 36 box core samples were collected to better define resources ahead of the 2022 Test Mining and to evaluate mining nodule recovery;
+Added: ● 57 in-situ cone penetrometer tests were completed ahead of and following the 2022 Test Mining.
The nodules in the box cores were collected, and their characteristics measured and recorded in detail.
−Removed: Samples of nodules were collected in duplicate and assayed at two reputable, well-qualified laboratories:
+Added: Samples of nodules were collected in duplicate and for initial campaigns assayed at two reputable, well-qualified laboratories:
ALS and Bureau Veritas.
+Added: Subsequently, samples were assayed at ALS, with every tenth samples checked by Bureau Veritas.
Certified reference material, and blank samples were inserted to provide additional levels of quality control.
3 unchanged sentences
Several estimation techniques were tested, and methodologies were developed that are suitable for closely-packed (Type 1) and less closely-packed (Type 2 and 3) nodules.
−Removed: For more information about the NORI exploration campaigns in 2012, 2013, 2018, 2019 and 2020, see Section 7 of the NORI Technical Report Summary.
+Added: For more information about the NORI exploration campaigns in 2012, 2013, 2018, 2019, 2020, 2022, 2023 and 2024 see Section 7 of the NORI-D PFS.
Mineral resource estimate
2 unchanged sentences
Estimates of nodule abundance and nickel, manganese, cobalt, and copper grades were performed using kriging.
−Removed: A variety of methods was used to validate the estimates, including conditional simulation.
+Added: A variety of methods were used to validate the estimates, including conditional simulation.
The estimates of nodule abundance were used to calculate the tonnage of the mineral resources.
6 unchanged sentences
The mineral resource estimate for NORI Area D at a 4 kilogram/square meters abundance cut-off is set forth below.
−Removed: This cut-off is derived from the estimates of costs and revenues presented in the NORI Technical Report Summary, generalized as follows:
−Removed: 1.7 Mt minimum annual tonnage mined;
−Removed: $0.25 million/square kilometers for offshore operating costs;
−Removed: 1,036 square kilometers collected area processed;
−Removed: $95/dry tonne for transport costs;
−Removed: $119/dry tonne for processing costs;
−Removed: $15/dry tonne for corporate, general and administrative costs;
−Removed: $33/dry tonne for ISA and state royalties;
−Removed: 95% recovery of nickel at an assumed price of nickel metal $16,472/t;
+Added: Operating costs and production estimates for the calculation of an abundance cut-off were based on estimates developed for the second generation of collection systems described and assessed in the TOML and NORI IA rather than the collection system evaluated for the mineral reserves in the NORI-D PFS.
+Added: This approach was chosen because the development scenario assessed in the TOML and NORI IA is a more likely timeframe in which the majority of the mineral resource in NORI Area D, not already converted to mineral reserve, would be developed.
+Added: The qualified person considered that the abundance cut-off calculated this way for the Mineral Resources is consistent with reasonable prospects of economic extraction.
+Added: An assessment of the abundance cut-off (break-even) for the NORI Contract Area and the TOML Contract Area is shown as follows:
+Added: Variable Opex
+Added: Opex per hour
+Added: A 94.6% recovery of nickel to sulfate at an assumed price of nickel sulfate;
86.2% recovery of copper at an assumed price of $11,440/t copper metal;
−Removed: 77% recovery of cobalt at an assumed price of $46,333/t cobalt metal;
+Added: 77.2% recovery of cobalt sulfate at an assumed price of $55,198/t cobalt metal;
and 98.9% recovery of manganese at an assumed price of $5.45/dmtu manganese in manganese silicate.
1 unchanged sentence
Revenue includes metal pricing and metallurgical processing recoveries, and the costs include the collection, transport, processing, corporate costs and royalties.
−Removed: The estimated mineral resources were determined in 2021 as of December 31, 2020 and also reflect the estimated mineral resources as of December 31, 2024, as none of the mineral resources in these areas were depleted by mining or any other activities.
−Removed: We do not believe there have been any other material changes to the estimated mineral resources since the 2021 determination thereof.
−Removed: NORI Area D December 31, 2024 In-Situ Mineral Resource estimate at 4 kg/m 2 abundance cut-off
+Added: The estimated mineral resources in NORI Area D set forth below were determined on June 30, 2025, and also reflect the estimated mineral resources as of December 31, 2025, as none of the mineral resources in these areas were depleted by mining or any other activities and are reflected in the NORI-D PFS and the TOML and NORI IA.
+Added: We do not believe there have been any other material changes to the estimated mineral resources since the initial 2025 determination thereof.
+Added: NORI Area D December 31, 2025 In-Situ Mineral Resource estimate, exclusive of Mineral Reserves, at 4 kg/m 2 abundance cut-off
(wet kg/m 2 )
4 unchanged sentences
Due to the extremely low variance in the grades and the high metal content of the nodules, a cut-off based on abundance is appropriate for determining the limits of economic exploitation.
−Removed: A cut-off of 4 kg/m 2 abundance was chosen for the NORI Contract Area, based on the estimates of costs and revenues presented in the initial assessment contained in the NORI Technical Report Summary.
+Added: A cut-off of 4 kg/m 2 abundance was chosen for the NORI Contract Area, based on the estimates of costs and revenues presented in the initial assessment contained in the NORI-D PFS.
The metal prices assumed in the calculation of the cut-off were:
−Removed: nickel metal $16,472/t;
+Added: nickel sulfate $21,633/t;
copper metal $11,440/t;
−Removed: cobalt metal $46,333/t;
−Removed: cobalt in manganese in manganese silicate $4.50/dmtu.
−Removed: The price estimates are long term (2034 – 2046) forecasts provided in a report by CRU International Limited (CRU, October 23, 2020).
+Added: cobalt sulfate $55,198/t;
+Added: cobalt in manganese silicate $5.45/dmtu.
+Added: The price estimates are long term (2034 – 2046) forecasts provided in a report by CRU International Limited and Benchmark Minerals, as documented in the Pre-Feasibility Study for NORI-D PFS.
The qualified Person considered that this timeframe is reasonable in view of the likely time required to bring the majority of the NORI mineral resources into production.
1 unchanged sentence
The mineral resource estimate set forth above is 4 Mt measured and 261 Mt indicated, and 10 Mt inferred mineral resources.
−Removed: Taking into account the conversion of the majority of inferred to indicated mineral resources, the remaining inferred mineral resource has decreased by 26 Mt as a result of excluding the Volcanic High domain in the south-eastern corner of NORI Area D, due to uncertainty about the occurrence of nodules in this area.
−Removed: The resource estimate is also slightly higher in abundance (5.4% higher), and nickel (6.1% higher), cobalt (5.4% higher) and manganese (2.2% higher) grades than the 2018 estimate.
−Removed: Comparison of the area covered by inferred, indicated and measured mineral resource for the estimate and the same area in the 2018 model shows that nickel grade has increased by 6% (1.32% to 1.40% Ni) while abundance has increased by 6% (16.0 to 17.0 kg/m 2 ).
−Removed: Mineral resource tonnage has increased by 10% (from 10 to 11 Mt) in the inferred area and 7% (from 320 to 341 Mt) in the indicated area.
−Removed: The positive conversion rates arising from infilling the sampling grid with high-quality box core sample data (rather than extending the area sampled) are exceptionally high compared to the typical outcomes from infill sampling of terrestrial mineral deposits.
−Removed: While the NORI Technical Report Summary focuses primarily on the exploration operations in NORI Area D, NORI holds another three areas in the CCZ under the same title.
−Removed: These areas (NORI Areas A, B and C) are estimated to contain inferred mineral resources of 510 Mt (wet) at 1.28% Ni, 0.21% Co, 1.04% Cu, 28.3% Mn, at an average abundance of 11 kg (wet)/m 2 at a 4 kg/m 2 abundance cut-off (effective date of December 31, 2020).
−Removed: The polymetallic nodule mineralization in NORI Areas A, B and C has similar characteristics to NORI Area D and it is reasonable to assume that the technology proposed in the NORI Technical Report Summary would be suitable for development of these additional areas.
−Removed: The estimated mineral resources were determined in 2021 as of December 31, 2020 and also reflect the estimated mineral resources as of December 31, 2024, as none of the mineral resources in these areas were depleted by mining or any other activities.
−Removed: We do not believe there have been any other material changes to the estimated mineral resources since the 2021 determination thereof.
+Added: While the NORI-D PFS focuses primarily on the exploration operations in NORI Area D, the TOML and NORI IA focuses on the exploration operations in NORI Areas A, B and C.
+Added: The polymetallic nodule mineralization in NORI Areas A, B and C has similar characteristics to NORI Area D and it is reasonable to assume that the technology proposed in the NORI-D PFS would be suitable for development of these additional areas.
+Added: The estimated mineral resources in NORI Areas A, B and C set forth below were determined on June 30, 2025, and also reflect the estimated mineral resources as of December 31, 2025, as none of the mineral resources in these areas were depleted by mining or any other activities and are reflected in the NORI-D PFS and the TOML and NORI IA.
+Added: We do not believe there have been any other material changes to the estimated mineral resources since the initial 2025 determination thereof.
NORI Area A, B and C December 31, 2025 In-Situ Mineral Resource estimate at 4 kg/m 2 abundance cut-off
4 unchanged sentences
These estimates are presented on an undiluted basis without adjustment for resource recovery.
−Removed: Information concerning our mineral properties in the NORI Technical Report Summary and in this Annual Report includes information that has been prepared in accordance with the requirements of the SEC Mining Rules set forth in subpart 1300 of Regulation S-K.
+Added: Information concerning our mineral properties in the Pre-Feasibility Study for NORI-D PFS, the TOML and NORI IA and in this Annual Report includes information that has been prepared in accordance with the requirements of the SEC Mining Rules.
Under SEC standards, mineralization, such as mineral resources, may not be classified as a “reserve” unless the determination has been made that the mineralization could be economically and legally produced or extracted at the time of the reserve determination.
−Removed: As used in this Annual Report, the terms “mineral resource,” “measured mineral resource,” “indicated mineral resource” and “inferred mineral resource” are defined and used in accordance with the SEC Mining Rules set forth in subpart 1300 of Regulation S-K.
+Added: As used in this Annual Report, the terms “pre-feasibility study,” “feasibility study,” “initial assessment,” “mineral reserve,” “probable mineral reserve,” proven mineral reserve,” “mineral resource,” “measured mineral resource,” “indicated mineral resource” and “inferred mineral resource” are defined and used in accordance with the SEC Mining Rules.
You are specifically cautioned not to assume that any part or all of the mineral deposits in these categories will ever be converted into mineral reserves, as defined by the SEC.
3 unchanged sentences
A significant amount of exploration must be completed in order to determine whether an inferred mineral resource may be upgraded to a higher category.
−Removed: About 97% of the NORI Area D resource is defined in the measured and indicated categories.
+Added: Approximately 97% of the NORI Area D mineral resource and approximately 7% of the NORI Areas A, B and C resource are defined in the measured and indicated categories.
Therefore, you are cautioned not to assume that all or any part of an inferred mineral resource exists, that it can be economically or legally mined, or that it will ever be upgraded to a higher category.
Likewise, you are cautioned not to assume that all or any part of measured or indicated mineral resources will ever be upgraded to mineral reserves.
+Added: Mineral reserve estimate
+Added: In addition to the establishment of the mineral resources discussed above, on August 4 2025, we reported mineral reserves for NORI Area D, a polymetallic nodule project.
+Added: The mineral reserve estimate is based on a mine plan developed from results observed during the test mining, extensive test work and analysis undertaken by us and Allseas.
+Added: Numerous workshops were conducted with us, Allseas and technical specialists to develop the nodule collection strategy on which the mine plan is based.
+Added: Testwork and analysis by marine specialists we engaged included seafloor geotechnical data collection and analysis, analysis of seafloor surveys, plume modelling of disturbed sediments and geological data to identify and characterise the seafloor areas suitable for nodule collection.
+Added: Testwork undertaken by Allseas while developing the nodule collection system included nodule collection simulation trials, and testwork specific to identifying the design and operating parameters for each of the various components of the system, and the test mining, using a 40% width scale prototype collector.
+Added: Although the mine plan covered the whole of the NORI Area D, initial mining for the first eight years was confined to a subset of NORI Area D in the southwest of the lease, referred to as the Initial Mining Area in the NORI-D PFS.
+Added: This area is close to the test mining area and so confidence in the modifying factors is sufficient to define Mineral Reserves.
+Added: It was also largely devoid of steep (>4 ) terrain and so was considered the most suitable area for initial collection operations.
+Added: The collector runs for the initial two years were generated to be as long as possible to allow for initial operations to be as simple as possible while operating procedures are refined.
+Added: Key inputs used to estimate the mineral reserve are the mineral resource model developed by AMC Consulting Pty Ltd, the nodule collection system specifications we provided to Allseas (including production capability and ability to collect on slopes up to 4°), collector dimensions and capabilities provided by Allseas, geotechnical data reports and specific location analysis by APYS Subsea Ltd (APYS), analysis and modelling by Allseas to determine seafloor trafficability, geological analysis by Marine Geoscience Innovation (MARGIN) to determine areas where nodules could be collected (geo-obstacle probability model), and the parameters developed by AMC from the work of all of the above.
+Added: Key physical parameters used by AMC to estimate the Mineral Reserve included collector recovery, geo-obstacle probability, gap left between collection paths to ensure collector efficiency, and metallurgical recoveries for each of the proposed products.
+Added: An economic model of production, product prices, payabilities, revenue, and operating and capital costs developed by TMC was used to assess economic viability.
+Added: The estimated mineral reserves in NORI Area D set forth below were determined on June 30, 2025, and also reflect the estimated mineral reserves as of December 31, 2025, as none of the mineral reserves in this area were depleted by mining or any other activities.
+Added: We do not believe there have been any other material changes to the estimated mineral resources since the initial 2025 determination thereof.
+Added: The NORI Area D December 31, 2025 Mineral Reserve:
+Added: Classification
+Added: Mineral Reserve estimated in Initial Mining Area only with 1,000 m buffers for the lease and seamounts.
+Added: Measured and Indicated mineral resources are converted to probable Mineral Reserves.
+Added: Grades are quoted on a dry basis.
+Added: Zero abundance cut-off used, with nodules <4 kg/m 2 used to define the Mineral Resource included as dilution to generate viable mining blocks.
+Added: Moisture content assumed to be 28% (mass of solid/(mass of solid + mass of water)).
+Added: Metal prices US$20,295/t Ni, US$21,633/t Ni sulfate, US$11,440/t Cu, US$56,117/t Co, US$55,198/t Co sulfate, US$5.45/dmtu Mn in manganese-silicate.
+Added: Nodule recovery by the Collector is estimated as 77% for Type 1 and 62% for Type 2 and 3 nodules.
+Added: Metallurgical recovery to sulfate is estimated as 94.6% Ni, 77.2% Co and 86.2% Cu, and to matte is 94.8% Ni, 77.5% Co, 86.4% Cu and for 98.9% for Mn.
+Added: Rounding estimates to two significant figures may result in computational discrepancies.
+Added: The Initial Mining Area as described in the NORI-D PFS which was converted to mineral reserves contains approximately 25% of the NORI Area D mineral resource and conversion of mineral resources to mineral reserves is approximately 57%.
+Added: The Mineral Reserves are classified as probable mineral reserve, due to:
+Added: ● the lack of operating experience with the nodule collection system proposed for NORI Area D to confirm production rates, nodule recovery assumptions, field efficiencies, and operating and capital cost parameters;
+Added: ● the lack of other commercial nodule operations to confirm the reasonableness of mine planning parameters, modifying factors and mine plan outcomes;
+Added: ● Lack of commercial recovery permit terms and conditions issued by NOAA on how management of nodule collection operations will be regulated and with which our operations need to comply.
+Added: The mineral reserves presented above are derived from the NORI-D PFS and are based on a mine plan and economic analysis that assume the receipt of all required regulatory approvals, including exploration licenses and commercial recovery permits under DSHMRA, as well as any required environmental and onshore processing permits.
+Added: The mineral reserve estimates incorporate modifying factors including mining, metallurgical, processing, economic, marketing, legal, environmental, infrastructure and governmental considerations.
+Added: Because commercial-scale polymetallic nodule collection has not yet been undertaken, production rates, nodule recovery assumptions, field efficiencies and operating parameters are based on pilot testing, engineering studies and prefeasibility-level analysis, and actual results may differ materially as commercial operations are developed.
+Added: In addition, the pre-feasibility study included in the NORI-D PFS indicated that the development of NORI Area D is technically and economically viable.
+Added: The pre-feasibility study, however, does not represent a feasibility study and does not support a development decision, as additional project planning and design are needed to make this decision.
+Added: The NORI-D PFS also does not include the conversion of all mineral resources included in NORI Area D to mineral reserves and does not include the conversion of any mineral resources to proven mineral reserves.
+Added: You are cautioned not to assume that all or any part of measured or indicated mineral resources will ever be upgraded to mineral reserves or that probable mineral reserves will ever be upgraded to proven mineral reserves.
+Added: Until mineral deposits are actually mined and processed, mineral resources and mineral reserves must be considered as estimates only.
Development plan
2 unchanged sentences
Additionally, this phased development will allow for an adaptive approach to environmental management providing learning at small-scale which would be applied as the development increases in scale.
−Removed: The development plan has been refined since the creation of the NORI Technical Report Summary.
−Removed: The proposed seafloor development phases are as follows:
+Added: The proposed seafloor development phases are as follows, as outlined in the NORI-D PFS:
● The Collector Test was designed to perform proof of concept for the methods of collecting and lifting the nodules while acquiring sufficient data to design a commercial system.
2 unchanged sentences
The test did not demonstrate the transshipment of nodules to a shore-based facility.
−Removed: ● Project Zero System would be an extension of the Collector Test using an upgrade of the Hidden Gem to produce a sufficient and continuous quantity of nodules to support commercial operation commencing at 1.3 Mtpa increasing in staged increments to 3.0 Mtpa of wet nodules delivered to a shore-based facility.
+Added: ● Production System #1 (“PV1”) would be an extension of the Collector Test using an upgrade of the Hidden Gem to produce a sufficient and continuous quantity of nodules to support commercial operation commencing at 1.3 Mtpa increasing in staged increments to 3.0 Mtpa of wet nodules delivered to a shore-based facility.
This operation would demonstrate a more continuous collection operation at a larger scale than the Collector Test and would demonstrate the transshipment of nodules to a processing facility.
It would also allow for the implementation and testing of adaptive management systems to ensure environmental compliance.
−Removed: ● Project Zero Plan of Work application contemplates that an increase in production is achieved via the introduction of another production vessel with the capacity of up to 3.0 Mtpa.
+Added: ● We contemplate that an increase in production is achieved via the introduction of another production vessel with the capacity of up to 3.0 Mtpa.
● The processing of the polymetallic nodules would also be ramped up in phases:
−Removed: ● In Project Zero, NORI proposes to toll-treat polymetallic nodules at existing RKEF smelters, utilizing excess industry capacity.
+Added: ● We propose to toll-treat polymetallic nodules at existing RKEF smelters, utilizing excess industry capacity.
NORI advises there is significant interest from many parties in China, Indonesia and Japan to utilize RKEF plants which may become stranded as a result of the Indonesian government nickel laterite ore export ban restricting supply of the nickel laterite feedstock that they currently utilize and the significant recent build-out of capacity in Indonesia which may have resulted in processing capacity oversupply.
These RKEF plants were originally built to convert nickel laterite to nickel pig iron and could be converted to smelt polymetallic nodules with minor modifications.
−Removed: Furthermore, in November 2023, we entered into a binding MoU with PAMCO whereby they must complete a feasibility study (anticipated to be completed in mid-2025) to toll treat 1.3 million tonnes of wet polymetallic nodules per year at its Hachinohe, Japan smelting facility.
−Removed: PAMCO’s Hachinohe facility is located on the coast in northern Japan and is equipped with port and processing infrastructure required to receive and process polymetallic nodules and to ship products to customers.
−Removed: ● In Project One, a purpose-built process plant may be constructed, including pyrometallurgical (~50% of Project One production, with the other ~50% tolled through existing RKEF facilities) and hydrometallurgical circuits (100% of Project One production).
+Added: Furthermore, PAMCO completed the feasibility study in June 2025 after successfully processing 2000t of wet nodules to produce Mn silicate product and nickel-copper -cobalt alloy.
+Added: The feasibility study confirmed operating parameters (e.g.
+Added: tapping temperatures and dusting rates) and product specifications for PAMCO’s dedicated production line and defined the scope and execution plan for required equipment modifications at its Hachinohe, Japan smelting facility, which is located on the coast in northern Japan and is equipped with port and processing infrastructure required to receive and process polymetallic nodules and to ship products to customers.
+Added: ● A purpose-built process plant may be constructed, including pyrometallurgical and hydrometallurgical circuits.
Nodule production would be increased in phases by treatment in this new plant and existing RKEFs.
Collection methods
−Removed: The main items of offshore infrastructure are the nodule collector vehicles, the riser, and three production support vessels (“PSV”):
−Removed: Drill Ship 2;
−Removed: and Collector Ship 1.
−Removed: Collector Ship 1 is intended to be supported by a collector support vessel.
+Added: The main items of offshore infrastructure are the nodule collector vehicles, the riser, and four production support vessels (“PSV”):
+Added: Hidden Gem, expected to be PV1;
+Added: Production Vessel #2, Production Vessel #3 and Production Vessel #4.
The nodules are intended to be collected from the seafloor by self-propelled, tracked, collector vehicles.
15 unchanged sentences
The energy to achieve the lift is planned to be supplied by compressors housed on the PSV, which are planned to be capable of generating very high air pressures, up to 15 MPa.
−Removed: The PSVs are planned to each support a RALS and its handling equipment, and to house the airlift compressors, collector vehicle control stations, and material handling equipment.
+Added: The PVs are planned to each support a riser and airlift system (“RALS”) and its handling equipment, and to house the airlift compressors, collector vehicle control stations, and material handling equipment.
All power for offshore equipment, including the nodule collecting vehicles, is intended to be generated on the PSVs.
The PSVs are intended to be equipped with controllable thrusters and to be capable of dynamic positioning (DP), which should allow the vessels and risers to track the collectors.
−Removed: The Collector Ship 1 PSV is expected to be similar in size to an Aframax or New Panamax class of tanker, displacing approximately 103,000 tonnes, and housing a crew of around 120 personnel.
−Removed: Nodules are planned to be discharged from the RALS to the PSVs, where they are expected to be dewatered and temporarily stored or transferred directly to a transport vessel.
−Removed: A separate collector support vessel is expected to remain at sea to support Collector Ship 1.
−Removed: It is expected to be configured as a subsea support platform, as commonly used in the oil industry, with a displacement of around 17,250 t.
−Removed: The function of the collector support vessel will be to facilitate collector maintenance and repair.
−Removed: The NORI Technical Report Summary assumes that transportation of nodules will be by chartered vessels, with deadweight capacities of 35,000 to 100,000 tonnes.
−Removed: The vessels are expected to require dynamic positioning capability to enable them to be loaded at sea alongside the PSV.
−Removed: Hydraulic offloading of the nodules from the PSV to the transport ships is assumed in the NORI Technical Report Summary, but future studies will confirm the offloading mechanism.
+Added: Nodules are planned to be discharged from the RALS to the PSVs, where they are expected to be dewatered and temporarily stored or transferred directly to a transfer vessel (“TV”).
+Added: Each PV will be supported by one dedicated dynamic position Transfer Vessel (TV).
+Added: Nodules will be offloaded from the PV to the TV at regular intervals during operations to ensure the PV storage capacity is not exceeded.
+Added: Support vessels (SVs) will provide ancillary services such as bunkering, waste management and personnel transfers.
+Added: The NORI-D PFS assumes nodules will be recovered from the hold of the PV using axial conveyors located beneath the storage holds.
+Added: They will then be lifted to deck level via sandwich conveyors and offloaded through a boom conveyor system capable of both luffing and slewing.
+Added: Offloading will occur at a rate of 2,500 wmt per hour to a dynamically positioned transfer vessel with 50,000 mt storage capacity.
+Added: The transfer vessel will in subsequently load Capesize bulk carriers, each with a storage capacity of approximately 200,000 mt, using a similar recovery and offloading system.
The overall nodule collector efficiency is estimated at 80%.
1 unchanged sentence
Nodule recovery efficiency is the product of nodule entrainment efficiency, subsea concentrator recovery, and dewatering system efficiency.
−Removed: The estimate of dewatering recovery used in the NORI Technical Report Summary is higher than indicated by the 1970s test work because data that has come to light recently suggests the amount of breakup during lifting the nodules up the RALS may be significantly less than previously assumed (Kennecott (1978), Deep Reach Technology (“DRT”) (2015)).
+Added: The estimate of dewatering recovery used in the NORI-D PFS is higher than indicated by the 1970s test work because data that has come to light recently suggests the amount of breakup during lifting the nodules up the RALS may be significantly less than previously assumed (Kennecott (1978), Deep Reach Technology (“DRT”) (2015)).
Expected Mineral Resource modifying factors
18 unchanged sentences
Is the product of the resource area efficiency * collector pick-up efficiency * collector under flow efficiency * (1 — nodule attrition (%)), * trans-shipment efficiency (92%*90%*95%*100%*93%).
−Removed: For more information on polymetallic nodule collection methods, see Section 13 of the NORI Technical Report Summary.
+Added: For more information on polymetallic nodule collection methods, see Section 13 of the NORI-D PFS.
Mineral processing and metallurgical testing
−Removed: A combined pyro-metallurgical and hydro-metallurgical flowsheet was evaluated for the initial assessment included in the NORI Technical Report Summary.
+Added: A combined pyro-metallurgical and hydro-metallurgical flowsheet was evaluated in the NORI-D PFS.
Similar flowsheets were investigated at various times over the last several decades.
1 unchanged sentence
This work has confirmed or improved the flowsheet that was initially developed from extensive information available in the literature.
−Removed: For Project Zero, NORI proposes to toll treat polymetallic nodules at existing RKEF smelters.
−Removed: During Project One, NORI proposes the progressive construction and expansion of a new pyrometallurgical and hydrometallurgical process plant for the recovery of battery-grade nickel and cobalt sulfate powder, copper cathode and manganese silicate, from polymetallic nodules.
−Removed: This is expected to allow for the proportion of toll treatment to be reduced.
−Removed: Four RKEF lines and two hydrometallurgical refineries are expected to be required to meet our expected production demand.
The pyrometallurgical front-end of the plant is expected to use RKEF lines that calcine and smelt the nodules to form an alloy.
7 unchanged sentences
The pyrometallurgical process is expected to generate a manganese silicate stream that we believe could be sold to the manganese industry and small converter slag stream that we believe could be sold for industrial applications.
−Removed: No value has been ascribed to converter slag in the NORI Technical Report Summary.
+Added: No value has been ascribed to converter slag in the NORI-D PFS.
The hydrometallurgical plant is expected to produce an ammonium sulfate by-product for sale to the fertilizer industry.
Thus, together with the ability to recycle other hydrometallurgical side-streams to the pyrometallurgical process, the flowsheet is planned to have neither tailings ponds nor permanent slag repositories and should not generate substantial waste streams.
−Removed: The average targeted processing rate for the new processing plant at full capacity is expected to be 6.4 Mtpa of nodules (dry basis).
−Removed: The location and host country of the processing operation has not yet been determined.
−Removed: Engineering design has not yet been undertaken.
+Added: The average targeted production rate for the new hydrometallurgical plant at full capacity is expected to be 6.4 Mtpa of nodules (dry basis).
+Added: The NORI-D PFS assumes this refining operation will be in Texas in the United States.
+Added: Detailed engineering design has not yet been undertaken.
Expected metallurgical recoveries are summarized in the table below.
4 unchanged sentences
Approximately 7.3 Mt of manganese silicate is expected to be produced per annum (from steady state operation from 2030 onwards).
−Removed: For more information on mineral processing and metallurgical testing, see Section 14 of the NORI Technical Report Summary.
+Added: For more information on mineral processing and metallurgical testing, see Section 14 of the NORI-D PFS.
Environmental studies, permitting, community, or social impact
2 unchanged sentences
Environmental campaigns in 2021 resulted in completion of the offshore environmental data collection required for the ESIA baseline studies.
−Removed: NORI has commenced the ESIA process in support of an application for an exploitation contract for the commercial collection of deep-sea polymetallic nodules.
−Removed: A comprehensive program of metocean and biological data acquisition was completed, which required to characterize the baseline conditions at a designated Collector Test site and control sites in the NORI Contract Area.
+Added: NORI has commenced the ESIA process in support of an application for a commercial recovery permit for the commercial collection of deep-sea polymetallic nodules.
+Added: A comprehensive program of metocean and biological data acquisition was completed, which was required to characterize the baseline conditions at a designated Collector Test site and control sites in the NORI Contract Area.
NORI intends to manage the project under the governance of an Environmental Management System (“EMS”), which is to be developed in accordance with the international EMS standard, ISO 14001:2004.
2 unchanged sentences
The plan will specify the objectives and purpose of all monitoring requirements, the components to be monitored, frequency of monitoring, methods of monitoring, analysis required in each monitoring component, monitoring data management and reporting.
−Removed: The plan will be submitted to the ISA as part of the ISA Exploitation Contract application.
This plan will involve an ecosystem approach incorporating an adaptive management system.
2 unchanged sentences
No significant commercial fishing is carried out in the area.
−Removed: The project is expected to provide a source of revenue to our sponsor country, Nauru, and the ISA.
−Removed: The onshore environmental and social impacts are in the process of being evaluated as part of the feasibility being undertaken by PAMCO under the binding MoU signed in November 2023 for nodules that would be processed at their existing facility in Hachinohe, Japan.
+Added: The onshore environmental and social impacts are in the process of being evaluated as part of the feasibility being undertaken by PAMCO under the binding MoU signed in November 2023 for nodules that would be processed at their existing facility in Hachinohe, Japan, which was completed in June 2025.
This is an existing facility that has processed laterite ores since the mid 1960’s and has all the required operating permits to do so.
4 unchanged sentences
The planned metallurgical process will not generate solid waste products, and the deleterious elements (for example, cadmium and arsenic) content of the nodules is very low, indicating that with careful management the environmental impacts of the processing operation could be very low.
−Removed: For more information on environmental studies, permitting and social or community impact, see Section 17 of the NORI Technical Report Summary.
−Removed: 2021 economic analysis and non-reliance thereon
−Removed: In connection with the preparation of the NORI Technical Report Summary, we developed in-house a point-in-time financial model based on estimates of future cash flows derived from extraction of nodules from the NORI Area D project, which AMC reviewed the logic, input assumptions and integrity of the calculations and forecasts.
−Removed: This preliminary point-in-time economic analysis set forth in Section 19 of the NORI Technical Report Summary presented a post-tax, real (uninflated) cash flows analysis as of a valuation date of January 1, 2021 based in part on the estimated capital and operating costs set forth in Section 18 of the NORI Technical Report Summary.
−Removed: As part of its review of the economic analysis, AMC cautioned that a pre-feasibility study had not been undertaken and recommended that further data gathering, analysis, design and cost estimation be undertaken to advance the project.
−Removed: We have continued to define our resource in the NORI area, with the goal to develop project economics to pre-feasibility level and are working towards a pre-feasibility study, which is nearing completion.
−Removed: As part of our ongoing refinement of our business plans and resource definition work, we are now pursuing a low-CAPEX approach to our development and commercialization of operations for our NORI Area D project where we reuse existing production assets opposed to the high-CAPEX approach where the majority of offshore and onshore production assets would be newly built by us as assumed in the 2021 economic analysis included in the NORI Technical Report Summary.
−Removed: As a result of these changes and the general passage of time since the valuation date of January 1, 2021, the 2021 point-in-time economic analysis included in Section 19 of the NORI Technical Report Summary and the estimated capital and operating costs set forth in Section 18 of the NORI Technical Report Summary, including any references thereto throughout the NORI Technical Report Summary, should no longer be relied upon or used by investors for any reason.
−Removed: We note that we do not believe that there have been any material changes to the abundance cut-off grades used throughout the NORI Technical Report Summary or the Qualified Person’s opinion that the mineral resources included in the NORI Technical Report Summary have reasonable prospects of economic extraction.
+Added: For more information on environmental studies, permitting and social or community impact, see Section 17 of the NORI-D PFS.
Internal controls and data verification
1 unchanged sentence
We, AMC and NORI have not had access to the original assay sheets for the individual samples that are within the CCZ, and the quality control procedures used by the laboratories and the ISA.
−Removed: However, the consistency between the abundance and grade data collected by the pioneer investors, as presented in Section 9.1 of the NORI Technical Report Summary, supports the contention that the quality of the pioneer investor data is satisfactory.
+Added: However, the consistency between the abundance and grade data collected by the pioneer investors, as presented in Section 9.1 of the NORI-D PFS, supports the contention that the quality of the pioneer investor data is satisfactory.
It is also reasonable to infer that the pioneer investor data are of sufficient quality for resource estimation because the ISA is an independent agency with significant accountability under the UNCLOS.
1 unchanged sentence
It is reasonable to assume that a reasonable level of care was applied by the ISA.
+Added: No pioneer investor data was used for the mineral resource and mineral reserve estimates included in the NORI-D PFS.
+Added: The NORI Areas A-C and TOML mineral resource estimates included in the TOML and NORI IA incorporates pioneer investor data in these estimates.
Data collected by NORI is well-documented and was subject to satisfactory quality assurance/quality control processes.
4 unchanged sentences
Estimates of abundance that include pioneer investor data are therefore likely to be conservative.
−Removed: For more information about quality control/quality assurance and data verification, see Section 8 and Section 9 of the NORI Technical Report Summary.
+Added: For more information about quality control/quality assurance and data verification, see Section 8 and Section 9 of the NORI-D PFS.
+Added: Qualified Persons
+Added: The following third-party qualified persons as defined in the SEC Mining Rules contributed to the NORI-D PFS and the TOML and NORI IA:
+Added: Ian Stevenson, Geoscience Consultant, MARGIN – Marine Geoscience Innovation
+Added: ● John Buckell, Consultant, APYS Subsea Ltd
+Added: ● Cameron Harris, Principal:
+Added: Smelting, Canadian Engineering Associates Ltd
+Added: ● Brett Roughan, Principal, Lanasera Pty Ltd
+Added: ● Andrew Hall, CEO, AMC Consultants Pty Ltd
+Added: In addition, the following personnel of the Company served as qualified persons for certain sections of the NORI-D PFS and the TOML and NORI IA:
+Added: ● Anthony O’Sullivan, Chief Development Officer
+Added: ● Rutger Bosland, Chief Innovation and Offshore Technology Officer
+Added: Michael Clarke, Environmental Program Director
+Added: ● Adam Price, Project Control Manager
+Added: Each of the third-party qualified persons listed above is not an employee of the Company.
TOML Contract Area
−Removed: The information that follows relating to the TOML Contract Area of the CCZ is derived, for the most part, from, and in some instances is an extract from, the TOML Technical Report Summary prepared in compliance with the SEC Mining Rules.
+Added: The information that follows relating to the TOML Contract Area of the CCZ subject to the TOML Exploration Contract with the ISA is derived, for the most part, from, and in some instances is an extract from, the TOML and NORI IA.
Portions of the following information are based on assumptions, qualifications and procedures which are not fully described herein.
−Removed: Reference should be made to the full text of the TOML Technical Report Summary, which has been incorporated by reference as exhibit 96.2 to this Annual Report.
−Removed: In the event that we determine that any of modifying factors, estimates and other scientific and technical information in the report materially change, we may update or file a new technical report in the future.
+Added: Reference should be made to the full text of TOML and NORI IA, which has been incorporated by reference as exhibit 96.2 to this Annual Report.
+Added: In the event that we determine that any of modifying factors, estimates and other scientific and technical information in the TOML and NORI IA materially change, we may update or file a new technical report in the future.
The TOML Contract Area is an exploration stage property.
12 unchanged sentences
All personnel and material will be transported to the project area by ship.
−Removed: See Section 3 of the TOML Technical Report Summary for further specific information of the location of the TOML Contract Area.
+Added: See Section 3 of the TOML and NORI IA for further specific information of the location of the TOML Contract Area.
Tenements and permits
−Removed: See Business Regulations-The TOML Exploration Contract, Business Regulations-The TOML Sponsorship Agreement and Business Regulations- International Seabed Authority above for information related to tenements and permits in the TOML Contract Area
+Added: See Business- Laws and Regulations-The TOML ISA Exploration Contract, Business- Laws and Regulations-The TOML Sponsorship Agreement and Business- Laws and Regulations- International Seabed Authority above for information related to tenements and permits in the TOML Contract Area.
TOML obligations and sponsorship
−Removed: See Business Regulations-The TOML Exploration Contract, Business Regulations-The TOML Sponsorship Agreement above for information related to this agreement in the TOML Contract Area.
+Added: See Business- Laws and Regulations-The TOML ISA Exploration Contract, Business- Laws and Regulations-The TOML Sponsorship Agreement above for information related to this agreement in the TOML Contract Area.
Royalties and taxes
−Removed: See Business Regulations-Royalties and taxes above for information with respect to our obligations for royalties and taxes in the TOML Contract Area.
+Added: See Business- Laws and Regulations-Royalties and Taxes above for information with respect to our obligations for royalties and taxes in the TOML Contract Area.
History of previous exploration activities in the TOML Area
13 unchanged sentences
Virtually all the samples in the TOML tenement area were obtained by FFG samplers, although a few results from box corers (BC) were also included.
−Removed: See Section 5 of the TOML Technical Report Summary for further specific information of the history of previous exploration of the TOML Contract Area.
+Added: See Section 5 of the TOML and NORI IA and the NORI-D PFS for further specific information of the history of previous exploration of the TOML Contract Area.
Geology and sampling
5 unchanged sentences
Consequently, there is relatively little difference between the size, shape or metal content of the nodules from one area to another.
−Removed: Figure 6.9 to Figure 6.11 of the TOML Technical Report Summary illustrate the remarkable continuity of grades and abundances across the whole of the CCZ.
+Added: Figure 6.4 to Figure 6.8 of the TOML and NORI IA illustrate the remarkable continuity of grades and abundances across the whole of the CCZ.
The morphological features of the seafloor are similar in the TOML and the NORI Areas, which all lie within the Abyssal Plains and are characterized by sub-parallel basaltic lava ridges called abyssal hills.
31 unchanged sentences
Nodule abundance is sometimes less continuous than grade, as it is also subject to local changes in net sedimentation (a consequence of seafloor slope, slumping, erosion and local currents).
−Removed: For more information about the TOML exploration campaigns in 2013 and 2015, see Section 7 of the TOML Technical Report Summary.
+Added: For more information about the TOML exploration campaigns in 2013 and 2015, see Section 7 of the TOML and NORI IA.
Mineral resource estimate
15 unchanged sentences
Measured mineral resource was based on box core sampling by TOML on a nominal spacing of approximately 7 km by 7 kilometers plus photo-profiling on a nominal spacing of 3.5 kilometers by 3.0 kilometers, supplemented by sampling by pioneer contractors.
−Removed: The mineral resource estimate for the TOML Contract Area, and at a 4 kilogram/square meters abundance cut-off is set forth below.
−Removed: The estimated mineral resources were determined in 2021, as of December 31, 2020, and also reflect the estimated mineral resources as of December 31, 2024, as none of the mineral resources in these areas were depleted by mining or any other activities.
+Added: The estimated mineral resources in area set forth below were determined on June 30, 2025, and also reflect the estimated mineral resources as of December 31, 2025, as none of the mineral resources in these areas were depleted by mining or any other activities and are reflected in the TOML and NORI IA.
We do not believe there have been any other material changes to the estimated mineral resources since the 2021 determination thereof.
11 unchanged sentences
The estimate of abundance and hence tonnage for the inferred mineral resource for the TOML Contract Area may be biased low due to reliance on free fall grab samples in places.
−Removed: The above mineral resource estimate (measured, indicated and inferred mineral resources), which was informed by data collected by TOML in 2013 and 2015, is presented in Table 11.9 of the TOML Technical Report Summary.
+Added: The above mineral resource estimate (measured, indicated and inferred mineral resources), which was informed by data collected by TOML in 2013 and 2015, is presented in Table 11.9 of the TOML and NORI IA.
Due to the extremely low variance in the grades and the high metal content of the nodules, a cut-off based on abundance is appropriate for determining the limits of economic exploitation.
−Removed: A cut-off of 4 kg/m 2 abundance was chosen for the TOML Contract Area, based on the estimates of costs and revenues presented in the initial assessment contained in the NORI Technical Report Summary, generalized as follows:
−Removed: 1.7 Mt minimum annual tonnage mined;
−Removed: $0.25 million/square kilometers for offshore operating costs;
−Removed: 1,036 square kilometers collected area processed;
−Removed: $95/dry tonne for transport costs;
−Removed: $119/dry tonne for processing costs;
−Removed: $15/dry tonne for corporate, general and administrative costs;
−Removed: $33/dry tonne for ISA and state royalties;
−Removed: 95% recovery of nickel at an assumed price of nickel metal $16,472/t;
+Added: A cut-off of 4 kg/m 2 abundance was chosen for the TOML Contract Area, based on the operating costs and production estimates for the calculation of an abundance cut-off based on estimates developed for the second generation of collection systems described and assessed in the NORI and TOML IA rather than the collection system evaluated for the mineral reserves in the NORI-D PFS.
+Added: This approach was chosen because the development scenario assessed in the TOML and NORI IA is a more likely timeframe in which the mineral resource in the TOML area would be developed.
+Added: The qualified person considered that the abundance cut-off calculated this way for the Mineral Resources is consistent with reasonable prospects of economic extraction.
+Added: An assessment of the abundance cut-off (breakeven) for the TOML Contract Area and the NORI Contract Area is as follows:
+Added: Variable Opex
+Added: Opex per hour
+Added: A 94.6% recovery of nickel to sulfate at an assumed price of nickel sulfate $21,633/t;
86.2% recovery of copper at an assumed price of $11,440/t copper metal;
−Removed: 77% recovery of cobalt at an assumed price of $46,333/t cobalt metal;
+Added: 77.2% recovery of cobalt sulfate at an assumed price of $55,198/t cobalt metal;
and 98.9% recovery of manganese at an assumed price of $5.45/dmtu manganese in manganese silicate.
−Removed: The metal prices assumed in the calculation of the cut-off were:
−Removed: nickel metal $16,472/t;
−Removed: copper metal $6,872/t;
−Removed: cobalt metal $46,333/t;
−Removed: manganese in manganese silicate $4.50/dmtu.
−Removed: The price estimates are long term (2034 – 2046) forecasts provided in a report by CRU International Limited (CRU, 2020).
+Added: The method of calculation for the cut-off determines the minimum average nodule abundance needed during steady state operations such that the revenue minus costs (excluding capital) is greater than zero.
+Added: Revenue includes metal pricing and metallurgical processing recoveries, and the costs include the collection, transport, processing, corporate costs and royalties.
The qualified person considered that this timeframe is reasonable in view of the likely time required to bring the majority of the TOML mineral resources into production.
9 unchanged sentences
These changes show that it is reasonable to expect that the majority of inferred mineral resources could be upgraded to indicated or measured resources with further exploration.
−Removed: Information concerning our mineral properties in the TOML Technical Report Summary and in this Annual Report includes information that has been prepared in accordance with the requirements of the SEC Mining Rules set forth in subpart 1300 of Regulation S-K.
+Added: Information concerning our mineral properties in the TOML and NORI IA and in this Annual Report with respect to the TOML Contract Area includes information that has been prepared in accordance with the requirements of the SEC Mining Rules.
Under SEC standards, mineralization, such as mineral resources, may not be classified as a “reserve” unless the determination has been made that the mineralization could be economically and legally produced or extracted at the time of the reserve determination.
−Removed: As used in this Annual Report, the terms “mineral resource,” “measured mineral resource,” “indicated mineral resource” and “inferred mineral resource” are defined and used in accordance with the SEC Mining Rules set forth in subpart 1300 of Regulation S-K.
You are specifically cautioned not to assume that any part or all of the mineral deposits in these categories will ever be converted into mineral reserves, as defined by the SEC.
4 unchanged sentences
A significant amount of exploration must be completed in order to determine whether an inferred mineral resource may be upgraded to a higher category.
+Added: About 10% of the TOML Contract Area resource is defined in the measured and indicated categories.
Therefore, you are cautioned not to assume that all or any part of an inferred mineral resource exists, that it can be economically or legally mined, or that it will ever be upgraded to a higher category.
13 unchanged sentences
Sample security was of a high standard and the Qualified Persons considered that there was negligible risk of interference with the samples.
−Removed: The development plan for commercial development of polymetallic nodule deposits in the CCZ were studied as described in the NORI Technical Report Summary.
+Added: The development plan for commercial development of polymetallic nodule deposits in the CCZ were studied as described in the NORI-D PFS.
The commonality between the polymetallic nodule deposits in NORI Area D and the TOML Contract Area indicates that the methods proposed for the development of NORI Area D can reasonably be assumed to be equally relevant for future development in the TOML Contract Area.
Collection methods
−Removed: Recovery and collection methods that could be employed for commercial development of polymetallic nodule deposits in the CCZ were studied as described in the NORI Technical Report Summary.
+Added: Recovery and collection methods that could be employed for commercial development of polymetallic nodule deposits in the CCZ were studied as described in the TOML and NORI IA.
The commonality between the polymetallic nodule deposits in NORI Area D and the TOML Contract Area indicates that the methods proposed for the development of NORI Area D can reasonably be assumed to be equally relevant for future development in the TOML Contract Area.
−Removed: This is discussed further in Section 11.9.4 of the TOML Technical Report Summary, which assessed the collection methods.
−Removed: The main items of offshore infrastructure are the nodule collector vehicles, the riser, and three production support vessels (PSV).
+Added: This is discussed further in Section 13 of the TOML and NORI IA, which assessed the collection methods for the second generation of collection systems, which would be in operation at the time the TOML project would be developed.
+Added: The main items of offshore infrastructure are the nodule collector vehicles, the riser, and the production vessels (PV).
The nodules are expected to be collected from the seafloor by self-propelled, tracked, collector vehicles.
13 unchanged sentences
The energy to achieve the lift is expected to be supplied by compressors housed on the PSV, which is expected to be capable of generating very high air pressures.
−Removed: The PSVs are expected to each support a RALS and its handling equipment, and are expected to house the airlift compressors, collector vehicle control stations, and material handling equipment.
+Added: The PVs are expected to each support a RALS and its handling equipment, and are expected to house the airlift compressors, collector vehicle control stations, and material handling equipment.
All power for offshore equipment, including the nodule collecting vehicles, is expected to be generated on the PSVs.
The PSVs are expected to be equipped with controllable thrusters and are expected to be capable of dynamic positioning (DP), which are expected to allow the vessels and risers to track the collectors.
−Removed: Nodules are expected to be discharged from the RALS to the PSVs, where they are expected to be dewatered and temporarily stored or transferred directly to a transport vessel.
−Removed: A preliminary assessment of the transportation fleet for transfer of nodules from the CCZ to an existing deep-water industrial port equipped with bulk offloading facilities was examined.
−Removed: The TOML Technical Report Summary assumed that chartered vessels with 35,000 to 100,000 tonne deadweight capacities would be used to transport the dewatered nodules to the port of Lazaro Cardenas, Michoacan, Mexico, 960 nm from the NORI Area D reference site.
−Removed: The vessels are expected to be converted bulk mineral carriers with dynamic positioning (DP) to allow tracking behind the production support vessels during operations.
−Removed: The method of offloading, known as tandem offloading, is well established for offloading of oil production vessels in remote areas of the world.
+Added: The NORI AND TOML IA assumes a total of eight separate 2nd Generation Production Systems (“2nd Gen”) are expected to be employed.
+Added: Each of the eight 2nd Gen systems consists of a PV that powers seafloor CVs in addition to a RALS, dewatering plant, and nodule handling and offloading infrastructure.
+Added: The PV is expected to be supported by TVs that receive dewatered nodules from the PV and transport the nodules to port for processing.
+Added: Supply vessels provide resupply of fuel, personnel and logistics and operate out of the mainland USA.
+Added: Each of the eight systems is assumed to be identical and capable of meeting a nameplate capacity of 7 Mwmtpa in the TOML-F area and 5 Mwmtpa in the other areas of lower abundance.
+Added: The first three PVs are brought online over a three-year period in the TOML Area F with the five additional systems coming online over a period of 5 years.
+Added: All nodules are assumed to be shipped to a receiving deepwater port in Indonesia for unload and processing to matte before shipping to the USA for further refinement.
+Added: Further information on the proposed mining methods can be found in section 13 of the NORI and TOML IA.
Mineral processing and metallurgical testing
The polymetallic nodules in the TOML and NORI Areas have similar morphological, mineralogical, and grade characteristics.
−Removed: As noted in Section 10 of the TOML Technical Report Summary, all published historical work indicates that processing of nodules is technically feasible.
+Added: As noted in Section 10 of the TOML and NORI IA, all published historical work indicates that processing of nodules is technically feasible.
The commonality between the polymetallic nodule deposits in NORI Area D and TOML Contract Area indicates that the methods proposed for the development of NORI Area D can reasonably be assumed to be equally relevant for future development in the TOML Contract Area.
−Removed: This is discussed further in Section 11.9.5 of the TOML Technical Report Summary, which assessed the following mineral processing scenario.
+Added: This is discussed further in Section 11.9.5 of the TOML and NORI IA, which assessed the following mineral processing scenario.
The first part of the pyrometallurgical process is the RKEF process that is widely used in the nickel laterite industry.
−Removed: The second pyrometallurgical step (sulphidization of the alloy produced in the first step to form a matte and then partially conversion in a Peirce-Smith converter to remove iron), while not widely practiced, also has commercial precedent at the Doniambo plant of Societe Le Nickel in New Caledonia.
+Added: The second pyrometallurgical step (sulphidization of the alloy produced in the first step to form a matte and then partially conversion in a Peirce-Smith converter to remove iron), while not widely practiced, also has commercial precedent at the Koniambo plant of Societe Le Nickel in New Caledonia.
Sulfuric acid leaching of matte from the pyrometallurgical process has precedent in the platinum group minerals (PGM) industry.
19 unchanged sentences
● Rather than generating large waste streams, the process is expected to produce by-products including high manganese content furnace slag and ammonium sulfate.
−Removed: The process assumptions used in this TOML Technical Report Summary will need to be verified as the project proceeds.
−Removed: For more information on mineral processing and metallurgical testing, see Section 10 of the TOML Technical Report Summary.
+Added: The process assumptions used in this TOML and NORI IA will need to be verified as the project proceeds.
+Added: For more information on mineral processing and metallurgical testing, see Section 10 of the TOML and NORI IA.
Environmental studies, permitting, community, or social impact
8 unchanged sentences
The planned metallurgical process is not expected to generate solid waste products.
−Removed: For more information on environmental studies, permitting and social or community impact, see Section 17 of the TOML Technical Report Summary.
+Added: For more information on environmental studies, permitting and social or community impact, see Section 17 of the TOML and NORI IA.
Internal controls and data verification
29 unchanged sentences
The qualified person considered the abundance estimates derived from photographs to date from TOML Areas B and C, to be suitable for estimating nodule abundance for the mineral resource.
−Removed: For more information about quality control/quality assurance and data verification, see Section 8 and Section 9 of the TOML Technical Report Summary.
+Added: For more information about quality control/quality assurance and data verification, see Section 8 and Section 9 of the TOML and NORI IA.
+Added: Qualified Persons
+Added: See “ NORI Contract Area – Qualified Persons ” for information about the qualified persons under the SEC Mining Rules that contributed to the NORI Area A PFS and the TOML and NORI IA.
Compared sentence by sentence after normalising whitespace, quotation marks, case and digits, so re-formatting and restated figures do not read as changed language. Wording changes appear as one removal and one addition. The current filing and the prior one are authoritative.