Muroto Cape Offshore Area (Ashizuri Offshore Section 9) Fisheries Environment Improvement Construction (Fisheries Environment (Debt) No. 9-1-1) (Announced August 18, Reiwa 8)

Application Guidelines for General Competitive Bidding [Technical Proposal] Reiwa 8 (2026) Fisheries Environment (Debt) No. 9-1-1 Muroto Cape Offshore Area (Ashizuri Offshore Section 9) Fisheries Environment Improvement Construction 1. Construction Overview (1) Construction Name: Muroto Cape Offshore Area (Ashizuri Offshore Section 9) Fisheries Environment Improvement Construction (2) Construction Number: Fisheries Environment (Debt) No. 9-1-1 (3) Construction Location: Ashizuri Offshore, Tosashimizu City, Kochi Prefecture (4) Construction Details: This construction is a design-build integrated contract (price competition type) where technical proposals for design and construction are solicited, participants are selected after reviewing these proposals, and detailed design and construction are awarded to the same contractor. ① Detailed Design: Recovery, manufacturing, and installation of surface-type floating fish reef - Detailed design of surface-type floating fish reef N=1 set ② Construction: Manufacturing, recovery, and temporary storage of surface-type floating fish reef N=1 unit (5) Completion Deadline: March 17, Reiwa 10 (2028) (6) Reference Materials: Attached Performance Specifications 2. Matters Concerning Technical Proposal Submission (1) Scope of Technical Proposals: Technical proposals for design and construction necessary for the execution of the work, based on the performance specifications provided by the contracting party. However, the level of design shall be at the basic design level. (2) Technical proposals shall be submitted using Form 1. (3) The review of technical proposals will evaluate economic efficiency, construction reliability, safety, etc. (4) Submitted technical proposals will not be returned. (5) After the submission of technical proposals, replacements or resubmissions of the content of the technical proposals will not be permitted. However, this does not apply if requested by the contracting party. (6) Costs related to the creation of technical proposals based on technical proposals, and accompanying basic design drawings, design calculation sheets, etc., shall be borne by the proposer. (7) Quotations shall be submitted using Form 2 based on the technical proposals. (8) Two copies of the technical proposal and quotation shall be submitted. 3. Acceptance and Response to Inquiries Regarding Technical Proposal Creation (1) Inquiry Acceptance: Inquiries shall be made in writing (free format) and processed according to Section 3.3 of the Announcement. 4. Other (1) Design Changes: Design changes for this construction (design and construction) (due to "various unforeseen factors that may lead to an increase in construction costs (including design costs) and an extension of the construction period due to factors that become apparent after the contract is awarded") will be implemented if it becomes necessary to change quantities, etc., at the end of the detailed design, or if it becomes necessary to significantly change the specifications at the time of ordering due to natural conditions, ground conditions, environmental conditions, construction methods, etc. The creation of necessary drawings and other materials for design changes will generally be the responsibility of the contractor. The risks to be borne by the contracting party and the contractor are shown in Table 1. However, if this is not feasible, the risks may be discussed with the contracting party, taking into account the nature of the risks (magnitude, predictability, possibility of response, etc.). Form 1 Company Name: If the technical proposal is deemed appropriate, construction will proceed based on the technical proposal. Structure Type Size/Dimensions *The level of design shall be basic design level. *Attach general drawings. *Attach structural drawings, explanatory drawings, etc., as necessary. Technical Proposal Regarding Reiwa 8 (2026) Fisheries Environment (Debt) No. 9-1-1 Muroto Cape Offshore Area (Ashizuri Offshore Section 9) Fisheries Environment Improvement Construction, we propose the following: Structure Overview Proposal Overview Describe based on "Matters for which Technical Proposals are Requested (Reference)" regarding basic performance, structural stability, safety, constructability, cost reduction, and economic considerations. Form 1-1 Performance Requirements (Summary, details in performance specifications, etc.) Remarks Must be 10 years. Must meet the standards specified in the specifications. Size: Must be disk-shaped, φ7.0m to 10m. Include the basis for selecting the diameter. Must have a structure at the bottom of the main body to reduce the oscillation of the float. Measures such as filling with urethane foam must be taken to ensure buoyancy in case of damage to the floating part. Describe maintenance of compartment function (prevention of seawater movement to other compartments). Side plate height must be 1.5m or more. Ensure sufficient surplus buoyancy even when the maximum pull force is applied. Include the basis for determining the side plate height. If the side plate height is not the minimum dimension, state the reason. Material: General structural steel, but the dry side must be clad with stainless steel or similar for corrosion protection. Light height must be 4m or more above the waterline. Include the basis for determining the light height. Equipped with a fender, anti-corrosion plate, and luminous position indicator. Describe specifications confirmed to meet those specified in the specifications. Equipped with a watertight equipment room to house telemetry equipment, etc. The equipment room must be large enough for at least two people to enter for regular inspections, etc., and must be equipped with ventilation ports and ventilation equipment to prevent the accumulation of hydrogen gas, etc., generated by battery deterioration. Describe the space 확보. Equipped with lifting rings and handrails on the deck. The equipment room manhole cover must have a seawater intrusion prevention structure, and a ladder must be provided inside. The mast must have an upper deck, and be equipped with a marker light, etc., and an access ladder. Heavy anti-corrosion coating must be applied to all parts of the floating body. Measures such as attaching a recovery wire rope to the upper part of the mooring rope, etc., must be taken to facilitate easy lifting of the buoy upon completion of its service life. Alternatively, a structure that allows for the attachment of a recovery wire rope during recovery must be provided. During regular inspections, markings such as scales must be applied to the sides of the floating body to facilitate visual confirmation of the freeboard. Measures such as reinforcing members must be installed to prevent damage to the connector part of the main light's electrical cable. Mooring Method: Single-point slack mooring method. The upper 25m or so must be chain. The middle section shall be wire cable or wire rope coated with high-density polyethylene, etc. The length of each wire shall be determined considering ease of land transport and the winding capacity of the winch during recovery. - Describe the reason for selecting the wire cable or wire rope. The ends of the wire cable or wire rope shall be connected to the upper and lower chains with sockets or similar having sufficient watertight structure, and necessary cathodic protection measures shall be taken to maintain the service life even if the coating is damaged and exposed to seawater. Describe the specific content of the anti-corrosion measures. The lower part shall be chain with sufficient thickness. The material and thickness of the buoy lower mooring ring and shackles must be sufficient to withstand 10 years of use based on past records (corrosion, wear, etc.). Shackles for anchors must have measures to prevent the shackle pin from coming loose. Describe the specific content of the pin retention measures. Is the mooring rope configuration designed for economic efficiency and workability during recovery, with appropriate allocation and structure? Include the basis for the decision. Anchor: Danforth type anchor, weight must comply with applicable standards. Battery: Long-life sealed type (approx. 10 years service life). Equipped with 1 main light and 2 emergency lights, with an automatic switching structure to the emergency lights in case of main light failure. Include proposed specifications. (Attachment possible) Marker light power supply shall be equipped with 2 systems, with an automatic switching structure to the spare power supply in case of failure. Emergency lights and spare power supply switching shall trigger an alarm via telemetry. Equipped with a radar reflector. Include the quantity. Monitoring Method: Equipped with 400MHz band, satellite communication system, and Iridium satellite communication system. Structure to monitor floating position, power abnormality, light abnormality, AIS abnormality, etc. Structure to acquire weather and sea condition information (water temperature, wind speed, current speed, etc.). Performance: Telemetry equipment and AIS device performance shall be equivalent to or higher than the specifications. Equipped with tension meters, etc., to prevent excessive load on the winch/wire, etc. Describe the content of the equipment. Investigate recovered items. Recovered items after investigation shall be disposed of properly in accordance with the "Waste Management and Public Cleansing Act," and valuable items shall be recycled appropriately. Install accurately and safely at the planned position. Install using the sea deployment method. Describe the installation method. Prepare auxiliary or alternative equipment to the un-reeler brake so that the sea deployment work (mooring rope payout) can continue safely even if the floater, etc., detaches during deployment (when a force exceeding the un-reeler brake force limit may be applied). Describe the content of the equipment. Strive to assign a construction environment supervisor. Indicate whether assigned. Service Life Applicable Standards Floating Body Structure Other (Safety, Constructability, Cost Reduction/Economic Considerations, etc.) Mooring Rope Configuration Onboard Equipment Navigation Safety Equipment Matters for which Technical Proposals are Requested (Reference) Describe consideration and ingenuity for safety, constructability, and cost reduction, categorized by item. Item Monitoring/Measurement Items Other On-site Construction Recovery Work On-site Construction (Outside the scope of this work) Installation Work Form 2 Specifications (Reference) Unit Quantity Unit Price Amount Application Detailed Design Costs Rank 1 Set 1 Rank 4 Set 1 Detailed Design Floating Body Structure Design Set 1 Mooring Section Design Set 1 Drawing Creation/Quantity Calculation Set 1 Review Review Set 1 Direct Labor Costs Office Supplies Electronic Deliverables Creation Costs Set 1 Direct Expenses Other Costs Set 1 Work Costs General Administrative Expenses, etc. Set 1 Work Price A. Construction Costs Breakdown (1/3) Work Type, etc. Construction Name Company Name Muroto Cape Offshore Area (Ashizuri Offshore Section 9) Fisheries Environment Improvement Construction Survey Survey Preparation Sound Depth Measurement Report Creation Construction Specifications and Supervision/Inspection Guidelines Creation Form 2 Specifications (Reference) Unit Quantity Unit Price Amount Application Construction Costs Factory Production Costs Material Costs Floating Body Section Set 1 Mooring Rope Production Labor Costs Set 1 Factory Painting Costs Set 1 Direct Production Costs Total Factory Management Costs Set 1 Factory Production Cost Total ① Fish Attracting Device Recovery and Transport Costs Floating Body Section Loading and Transport Set 1 Preparation and Rigging (Disassembly) Set 1 Buoy Recovery At Sea Set 1 Buoy Landing Set 1 Buoy Disassembly and Disposal Set 1 Direct Construction Costs Total Transportation Costs Heavy Machinery Set 1 Safety Patrol Boat Set 1 Service Fees Port Facility Usage Fee Set 1 (When using a port as a work base) Technical Management Costs Recovered Item Investigation, etc. Set 1 Maintenance and Repair Costs Comfortable Toilet Set 1 Navigation Costs/Towing Set 1 Common Temporary Facilities Costs (Percentage) Set 1 Net Construction Costs Site Management Costs Set 1 Construction Cost Total ② General Administrative Expenses, etc. Set 1 (Percentage of ① + ②) *X% Construction Price B. Design and Construction Price A + B Consumption Tax Equivalent Set 1 (A + B) * 10% = C Total A + B + C [Current Construction] Equipment Unit Costs Equipment Unit Costs Safety Costs Common Temporary Facilities Total Construction Costs Breakdown (2/3) Work Type, etc. Construction Name Company Name Form 2 Specifications (Reference) Unit Quantity Unit Price Amount Application Construction Costs Factory Production Costs Material Costs Floating Body Section Set 1 Mooring Rope Production Labor Costs Set 1 Factory Painting Costs Set 1 Direct Production Costs Total Factory Management Costs Set 1 Factory Production Cost Total ① Fish Attracting Device Installation Costs Transportation Costs Floating Body Section Loading and Transport Set 1 Preparation and Rigging (Disassembly) Set 1 Buoy Recovery At Sea Set 1 Buoy Landing Set 1 Buoy Disassembly and Disposal Set 1 Rigging Equipment Transfer Set 1 Mooring Preparation Mooring Rope Loading and Buoy Towing Preparation Set 1 Buoy Installation At Sea Set 1 Direct Construction Costs Total Transportation Costs Heavy Machinery Set 1 Safety Patrol Boat Set 1 Service Fees Port Facility Usage Fee Set 1 (When using a port as a work base) Technical Management Costs Recovered Item Investigation, etc. Set 1 Maintenance and Repair Costs Comfortable Toilet Set 1 Navigation Costs/Towing Set 1 Common Temporary Facilities Costs (Percentage) Set 1 Net Construction Costs Site Management Costs Set 1 Construction Cost Total ② General Administrative Expenses, etc. Set 1 (Percentage of ① + ②) *X% Construction Price B. Design and Construction Price A + B Consumption Tax Equivalent Set 1 (A + B) * 10% = C Total A + B + C [Reference] Equipment Unit Costs Equipment Unit Costs Safety Costs Common Temporary Facilities Total Construction Costs Breakdown (3/3) Construction Name: Muroto Cape Offshore Area (Ashizuri Offshore Section 9) Fisheries Environment Improvement Construction Company Name: Work Type, etc. Table 1. Risk Allocation Table Contracting Party's Share Contractor's Share Construction Method, etc. Ensuring performance of construction method, breakdown of machinery used, variations in quality of materials used, etc. ○ Other Technical proposals regarding construction methods ○ Weather/Sea Conditions Effects of rain, snow, wind, temperature, waves, currents, etc. ○ (Excluding disasters and abnormal weather) Other Consideration for natural environment ○ Adjacent Construction Impact of nearby construction ○ Navigation Vessels / Roads in Use / Overhead Lines / Buildings, etc. in proximity ○ Noise/Vibration Consideration for noise and vibration for nearby residents, etc. ○ Water Pollution Consideration for water pollution in the surrounding marine environment. ○ Construction Roads/Yards Restrictions on construction roads for material transport, limited workspace at the port base. ○ On-Road Work Work requiring traffic control on roads in use. ○ Other Environmental measures other than noise, vibration, and water pollution; waste disposal; relocation of gas, water, and power lines; interference with radio waves, etc. ○ Coordination with Other Sections Coordination with nearby construction, scheduling with other projects. ○ (Excluding adjustments made by the contracting party) Resident Response Scheduling adjustments with local residents and related fishery cooperatives. ○ (Excluding adjustments made by the contracting party) Coordination with Related Organizations Coordination with relevant government agencies, etc. ○ (Excluding adjustments made by the contracting party) Schedule Management Constraints on construction period/schedule, response to changes (including those due to construction method changes). ○ Quality Management Complexity and intricacy of quality management (including demands for high quality management precision). ○ Safety Management Dangerous work such as high-altitude work, night work, work in bad weather, underwater work, etc. ○ Other Emergency restoration during disasters, etc. ○ Force Majeure (e.g., earthquakes (disasters), unpredictable abnormal weather) ○ Based on the contract clauses Human Error Errors in detailed design, calculation mistakes. ○ Revision of Laws and Standards Design changes due to revisions in ordinances and laws, changes in standards and guidelines, changes in construction costs due to tax system changes. ○ Other Breach of contract, labor disputes. ○ *Items marked "Share" and items not listed will be determined through consultation.