Tenders/Naha Purification Center on-site facility scum removal contract (R8) general competitive tender
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Naha Purification Center on-site facility scum removal contract (R8) general competitive tender

Auto-translated from Japanese
Original title: 那覇浄化センター場内施設スカム除去業務委託(R8)に係る一般競争入札
沖縄県
Published: Jun 5, 2026
Updated: Jun 24, 2026
Source: jp_kkj

About This Opportunity

This is a consulting contract in the water and sanitation sector, with a focus on Wastewater, Sanitation and Water Quality. Located in Japan, Asia, this opportunity is open to firms and consortiums.

Published through 官公需 (kkj.go.jp), a national government procurement portal. Public procurement tenders follow the country's national bidding regulations and may have specific eligibility and documentation requirements for consulting in the water and sanitation sector. Consulting assignments are typically evaluated with a strong emphasis on the technical proposal, including the methodology and qualifications of key experts. Shortlisted firms may be invited to submit financial proposals in a second stage. Interested parties should review the full documentation on the original source before submitting their proposal.

Description

Auto-translated from Japanese

Naha Purification Center on-site facility scum removal contract (R8) general competitive tender
1. Announcement of General Competitive Tender (Single Bid - Preliminary Review Type) Okinawa Prefectural Government, Department of Civil Engineering and Construction, Announcement of General Competitive Tender. In accordance with the provisions of Article 234, Paragraph 1 of the Local Autonomy Act (Law No. 67 of 1947), a general competitive tender (hereinafter referred to as "tender") will be conducted as follows.
June 1, Reiwa 8 Okinawa Prefectural Sewerage Office Director Masanori Miyazato 1. Business Overview (1) Business Name: Reclaimed Water Facility Tank Cleaning Contract (R8) (2) Business Location: Inside Naha Purification Center (3) Business Purpose: This business aims to clean and inspect the tanks within the reclaimed water facility to prevent water quality deterioration and confirm the condition of the tanks.
(4) Business Period: From the day after the contract is concluded until March 12, Reiwa 9 (5) Ordering Type: Single Bid (6) Qualification Review Method: Preliminary Review Type * Qualification for tender participation will be reviewed before opening the bids.
2. Tender Participation Qualifications: Must be qualified and meet all the following conditions.
(1) Must not fall under the provisions of Article 167-4 of the Local Autonomy Act Enforcement Order (Cabinet Order No. 16 of 1947).
(2) Must not be subject to suspension of designation based on the "Measures for Suspension of Designation for Contracts of Public Works, etc. Ordered by the Okinawa Prefectural Government, Department of Civil Engineering and Construction" during the period from the submission deadline of the tender application form to the tender date for this business.
(3) Must not be a construction company substantially controlled by yakuza or similar entities, and whose exclusion from public works ordered by the Okinawa Prefectural Government, Department of Civil Engineering and Construction is requested by the police authorities, and such situation is ongoing.
(4) There must be no relationship between tender participants that falls under any of the following criteria.
Note: Contacting each other to decide who withdraws when the following relationships exist does not violate the provisions of Article 3, Paragraph 2 of the Okinawa Prefectural Government, Department of Civil Engineering and Construction "Rules for Competitive Tenders". a) Capital relationship: In the case of two companies falling under any of the following (i) Subsidiaries, etc. (meaning subsidiaries, etc. as defined in Article 2, Item 3-2 of the Companies Act (Law No. 86 of 2005); the same applies hereinafter) and parent companies, etc. (meaning parent companies, etc. as defined in Article 2, Item 4-2 of the same Act; the same applies hereinafter) relationship.
2 (ii) Relationship between subsidiaries, etc. that share the same parent company, etc. b) Personnel relationship: In the case of two companies falling under any of the following. However, excluding cases where one of the companies in (i) is a company undergoing rehabilitation proceedings as defined in Article 2, Item 4 of the Civil Rehabilitation Act (Law No. 225 of 1999) or a company undergoing reorganization (meaning a company undergoing reorganization as defined in Article 2, Item 7 of the Corporate Reorganization Act (Law No. 154 of 2002)). (i) An officer of one company (meaning an officer as defined in Article 2, Item 3-3 of the Rules of the Companies Act; the same applies hereinafter) concurrently serves as an officer of the other company. However, excluding the following persons: 1) Directors of a stock company. However, excluding the following: (i) Directors who are audit committee members in a company with an audit and supervisory committee as defined in Article 2, Item 11-2 of the Companies Act. (ii) Directors in a company with a nominating committee, etc. as defined in Article 2, Item 12 of the Companies Act. (iii) Outside directors as defined in Article 2, Item 15 of the Companies Act. (iv) Directors who are not engaged in business execution due to separate provisions in the articles of incorporation as stipulated in Article 348, Paragraph 1 of the Companies Act. 2) Executive officers of a company with a nominating committee, etc. as defined in Article 402 of the Companies Act. 3) Members of a company with an equity structure (meaning a general partnership company, a limited partnership company, or a limited liability company) as defined in Article 575, Paragraph 1 of the Companies Act (excluding members who are not engaged in business execution due to separate provisions in the articles of incorporation as stipulated in Article 590, Paragraph 1 of the same Act). 4) Directors of a partnership. 5) Other persons engaged in business execution who are equivalent to those listed in 1) to 4) above. (ii) An officer of one company concurrently serves as a trustee of the other company. (iii) A trustee of one company concurrently serves as a trustee of the other company. c) Other cases where the fairness of bidding is deemed to be hindered. Cases where a partnership (including a joint venture) and its members participate in the same tender. Other cases where a capital or personnel relationship is deemed to be equivalent to the capital or personnel relationships described in a) or b) above. (5) Must not be a company for which a reorganization plan has not been approved, if it has filed for commencement of reorganization proceedings under the Corporate Reorganization Act (Law No. 154 of 2003), or a company for which a rehabilitation plan has not been approved, if it has filed for commencement of rehabilitation proceedings under the Civil Rehabilitation Act (Law No. 225 of 1999).
(6) Must have its main business office or a branch office on Okinawa Main Island.
(7) Must have at least one record of business such as cleaning and inspection of water storage facilities (tanks, distribution reservoirs, etc.) using underwater robots without water interruption within the following target period.
Target period: April 1, Heisei 28 to the day before the tender date.
(8) Requirements for planned technical personnel: a) The supervising engineer must have at least one record of business such as cleaning and inspection of water storage facilities (tanks, distribution reservoirs, etc.) using underwater robots without water interruption within the following target period.
3 Target period: April 1, Heisei 28 to the day before the tender date.
b) The supervising engineer must be certified by the Japan Association of Underwater Robot Survey and Cleaning as one of the following qualifications: - Class 1 Underwater Robot Survey and Cleaning Construction Management Engineer - Class 2 Underwater Robot Survey and Cleaning Construction Management Engineer c) The supervising engineer must have a direct employment relationship with the applicant for at least three months prior to the conclusion of this contract.
3. Submission of Application Forms, etc., and Confirmation of Tender Participation Qualifications: This business will be conducted using paper-based bidding procedures (from bid submission to award decision).
Those who wish to participate must submit the following documents within the application period to the following location and have their eligibility for tender participation confirmed. Those who fail to submit the application form and qualification confirmation documents by the deadline, or who are determined to be ineligible for competitive participation, will not be able to participate in this tender.
(1) Documents to be submitted: a) Application for Confirmation of General Competitive Tender Participation Qualification b) Documents indicating the location of the business office on Okinawa Main Island c) Form 1 (Record of business of the same type) d) Form 2 (Qualifications, etc. of planned supervising engineer) (Attach supporting documents.) e) Certificate of registered matters of the corporation (copy acceptable) f) Certificate of tax payment indicating no arrears in prefectural taxes (corporate business tax) (copy acceptable)
(2) Application submission period: From Monday, June 1, Reiwa 8 to Wednesday, June 10, Reiwa 8, between 9:00 AM and 12:00 PM, and 1:00 PM to 5:00 PM (excluding Saturdays, Sundays, and public holidays).
(3) Application submission location: Postal code 901-2221, 2nd Floor, Management Building, 3-12-1 Isa, Ginowan City, Okinawa Prefecture, Okinawa Prefectural Government, Department of Civil Engineering and Construction, Sewerage Office, Management Section (Contact: Omine) Tel: 098-898-5988
(4) Submission method for application forms, etc.: Submit in person or by mail (registered mail or certified mail; however, if there are any deficiencies, they must be corrected within the application period). Fax and email submissions will not be accepted.
(5) Notification of confirmation result of tender participation qualification: Will be notified by phone and in writing by Wednesday, June 17, Reiwa 8.
(6) Validity period of tender participation qualification: From the date of qualification acquisition based on this announcement until the conclusion of this business contract.
4 (7) Change of application details for qualification: If there is a change in any of the following matters during the validity period of tender participation qualification, the applicant must submit a notification of change of qualification application details without delay. a) Trade name or company name b) Address or location, and telephone number c) Name (for a corporation, the name of the representative director) d) Seal used
(8) Cancellation of qualification, etc.: If a person who has obtained tender participation qualification no longer meets the criteria in 2, their qualification will be revoked, and the person will be notified to that effect.
(9) Withdrawal from tender: If a participant wishes to withdraw from the tender after submitting the application form, they must submit a withdrawal notice by the bid deadline.
(10) Handling of documents related to this tender: a) Expenses for preparing and submitting application forms, etc. shall be borne by the submitter.
b) The contracting authority shall not use the submitted application forms, etc. for any purpose other than confirming tender participation qualifications.
c) Amendments, replacements, additions, or resubmissions of application forms, etc. are permitted only within the submission deadline. If omissions or missing attachments are found after the submission deadline, the applicant will be deemed ineligible for tender participation and will not be able to participate in the tender.
d) Application forms, etc. submitted after the deadline will not be accepted.
e) Submitted application forms, etc. will not be returned.
4. Place and Date of Bid Opening: Bid forms must be submitted in person. Bids by mail or telegram will not be accepted.
(1) Bid venue: Large conference room, 2nd Floor, Management Building, 3-12-1 Isa, Ginowan City, Okinawa Prefecture.
(2) Bid date and time: Friday, June 26, Reiwa 8, starting at 10:00 AM.
5. Bid Bond and Contract Security Deposit: (1) Bid Bond: Those who wish to participate in this tender must pay a bid bond of not less than 5/100 of the estimated contract amount in accordance with the provisions of Article 100 of the Okinawa Prefectural Finance Regulations (Okinawa Prefectural Ordinance No. 12 of 1972). However, if either a) or b) below is submitted, the bid bond payment will be waived. a) Insurance policy for bid bond insurance concluded with an insurance company. b) A document certifying that the bidder has concluded at least two contracts of the same type and scale with the national government (including independent administrative agencies, public corporations, and public companies) or with the prefecture or other local governments in the past two years, and has faithfully fulfilled all of them.
However, the following persons will have their bids invalidated for violating the tender conditions: (a) Those who have not paid the bid bond or submitted documents equivalent to a) or b) above by the deadline. (b) If the amount of the bid bond is less than the above conditions. (c) If there are deficiencies in the documents related to the payment of the bid bond, etc. Furthermore, once submitted, the bid bond payment or other related documents cannot be changed.
(2) Contract Security Deposit: Those who intend to conclude a contract must pay a contract security deposit of not less than 10/100 of the contract amount in accordance with the provisions of Article 101 of the Okinawa Prefectural Finance Regulations (Okinawa Prefectural Ordinance No. 12 of 1972). However, if either a) or b) below is submitted, the contract security deposit payment will be waived. a) Insurance policy for performance guarantee insurance concluded with an insurance company. b) A document certifying that the bidder has concluded at least two contracts of the same type and scale with the national government (including independent administrative agencies, public corporations, and public companies) or with the prefecture or other local governments in the past two years, and has faithfully fulfilled all of them.
6. Amount to be stated in the bid form: The bid amount shall include all costs required for this business. When determining the successful bid, the amount obtained by adding 10/100 of the stated amount to the stated amount in the bid form will be the successful bid price. Bidders shall state in their bid form an amount equivalent to 100/110 of the desired contract amount, regardless of whether they are taxable or exempt from consumption tax and local consumption tax.
7. Notes on Bidding: (1) Bidders must bring their own seal.
(2) The business name and the place of business execution must be filled in the bid form and power of attorney in accordance with the description in this announcement.
(3) If you do not wish to bid, you may refrain from participating by submitting a bid withdrawal notice by mail or in person.
8. Invalid Bids: Bids that fall under any of the following categories will be deemed invalid. Furthermore, those who have submitted an invalid bid cannot participate in the re-bid.
(1) Bids submitted by persons who are not eligible to participate in the tender.
(2) Bids submitted by persons who have made false statements in their application forms, etc.
(3) Bids submitted by persons who have failed to fulfill the requirements for bidders.
(4) Two or more bids submitted by the same person for the same item.
(5) Bids submitted by persons commissioned by two or more parties.
6 (6) Bids submitted by an agent who has not brought a power of attorney.
(7) Bids with corrected amounts stated.
(8) Bids with incorrect or unclear stated amounts, names, seals, or important characters.
(9) Bids that violate the tender conditions.
(10) Bids involving collusion or other fraudulent acts.
(11) Bids submitted by persons whose bid bond does not reach the prescribed amount.
(12) Bids that violate the tender conditions.
9. Method of Determining the Successful Bidder: (1) The bidder who submitted a valid bid and offered the lowest price within the estimated price will be the successful bidder.
(2) If there are two or more bidders who offer the same lowest price, a lottery will be held among those bidders to determine the successful bidder. In this case, if any of the bidders do not attend the bid opening or do not draw lots, an official unrelated to the bid execution will draw lots on their behalf.
(3) If there is no successful bidder after the bid opening, a re-bid will be held. In this case, the re-bid will be held immediately on the spot. The re-bid will be held up to two times.
(4) If there is still no successful bidder after the re-bid, a negotiated contract may be concluded in accordance with the provisions of Article 167-2, Paragraph 1, Item 8 of the Local Autonomy Act Enforcement Order.
10. Other: (1) For other details, refer to the contract and special specifications.
(2) Bidders must read and comply with the "Rules for Competitive Tenders of the Okinawa Prefectural Government, Department of Civil Engineering and Construction".
(3) No minimum reserve price will be set.
11. Inquiries and Answers Regarding This Project: (1) Inquiries regarding bidding and contract procedures: Contact: Okinawa Prefectural Government, Department of Civil Engineering and Construction, Sewerage Office, General Affairs Section, 2nd Floor, Management Building, 3-12-1 Isa, Ginowan City, Okinawa Prefecture. Tel: 098-898-5988
(2) Regarding matters other than (1) above: a) Submission of inquiry form: Okinawa Prefectural Government, Department of Civil Engineering and Construction, Sewerage Office, Management Section (Contact: Omine), 2nd Floor, Management Building, 3-12-1 Isa, Ginowan City, Okinawa Prefecture. Tel: 098-898-5988 FAX: 098-870-2268
b) Submission deadline: Wednesday, June 10, Reiwa 8, 5:00 PM.
c) Submission method: In person.
d) Response date: Wednesday, June 17, Reiwa 8 (scheduled).
e) Response method: From the response date until Friday, June 26, Reiwa 8, it will be posted on the bulletin board on the 1st floor of the Sewerage Office Management Building and on the website. However, if there are no inquiries, it will not be posted.
11. Complaint filing: Persons deemed ineligible for tender participation may file a complaint regarding their tender participation qualification...

Data provenance

This notice is sourced from 官公需 (kkj.go.jp) and was originally published on June 5, 2026. Last refreshed 1 day ago. Original language: Japanese. BidsFactory mirrors official procurement notices and links back to the source for full legal text.

About 沖縄県

沖縄県 has issued 31 procurement notices on BidsFactory, including 19 currently open and 3 awarded contracts. Activity concentrates in Construction & Civil Works, Health & Medical, and Architecture & Engineering Services. All notices are published for Japan. Notices are distributed via 官公需 (kkj.go.jp). Most recent publication: June 17, 2026.

Frequently asked questions about this tender

Who is the contracting authority?

This notice was issued by 沖縄県 in Japan. The authority is responsible for evaluating bids, awarding the contract, and managing performance.

What type of contract is this?

This is a Consulting contract in the Water & Sanitation sector. The classification helps bidders match the opportunity to their qualifications and registered scope of supply.

Where will the contract be performed?

The contract is for delivery in Japan. Foreign bidders should review local registration, taxation, and any in-country presence requirements before submitting.

How can I submit a bid?

Visit 官公需 (kkj.go.jp) to access the full notice, required documents, and submission instructions provided by the contracting authority.

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Key Details

Contract Type
Consulting
Eligibility
Firms / Consortiums
Language
Japanese

Source

jp_kkj
jp_kkj
Official Source

Contracting Authority

沖縄県
🇯🇵Japan

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