“To Keep It on Schedule”: Inside the Hokuriku Shinkansen Bid Leak

On Friday, April 3, after the working day had ended, an employee of Japan’s railway construction agency called a company representative from home on a personal telephone. The subject was a modest but technically delicate assignment: how to reduce noise around a station on the newly extended Hokuriku Shinkansen. During that call, according to the agency’s investigation, information even more carefully protected than the station’s sound escaped—the procuring authority’s planned price, its low-bid investigation threshold and the identity of the other participant.

The 26-page report released July 28 by the Japan Railway Construction, Transport and Technology Agency, usually known as JRTT, reconstructs the loss of trust with unusual precision. The employee disclosed nonpublic pricing data to Company A, sent it contact details for a representative of rival Company B, and the two firms then discussed their intentions and bid information. Company A told investigators that after learning Company B’s Komatsu bid was close to JRTT’s planned price, it increased the amount it intended to submit by approximately 3 percent.

That 3 percent is the center of the case. A leak of procurement information is not merely a technical violation of internal rules. A bidder that might have offered less learned enough about its rival’s hand to move its price upward. Competition changed because the buyer entrusted with protecting it supplied information that altered the bidders’ calculations.

A post-opening job to quiet the railway

The procurements did not concern construction of the Kanazawa–Tsuruga extension, which opened on March 16, 2024. The approximately 125.1-kilometer route was already carrying passengers. JRTT had built the infrastructure and retained ownership, leasing it to the operating railway, West Japan Railway Company. The new assignments involved additional design work after real trains revealed a noise problem.

Some sound can only be understood once a railway is operating. Surveys conducted from September through October 2025 found locations around Komatsu and Kagaonsen stations that exceeded environmental standards. JRTT decided that October to add controls at the source. The plan was to install sound-absorbing and shielding panels on the train-facing sides of station columns.

Those structures contain openings that let the pressure wave created by an arriving high-speed train escape. Sealing everything with a solid wall is not an option. The proposed solution preserves airflow while using porous panels: sound enters countless small voids, and friction converts the acoustic energy into heat. The two design assignments—one for Komatsu, one for Kagaonsen—were meant to turn that principle into buildable work.

The project’s officially authorized completion deadline is the end of fiscal 2027. The employee said there was concern that a failed tender would delay the timetable, and that an exceptionally low price might require an outside checking process that could deter bidders. The employee also believed Company A, which knew the original Komatsu design, was particularly suited to that station. Seen only as motive, this can resemble a technician’s anxiety to keep a public project moving. In procurement, however, an intention to “help the schedule” can become precisely the shortcut that defeats competition.

From a private call to two winning decisions

Why a planned price must remain secret

A planned price is the procuring authority’s estimate and normally defines the ceiling within which a public contract may be concluded. Some ingredients used here—such as reference labor inputs—were public. An experienced engineering firm might have calculated a close approximation. But “a bidder can estimate it” is not equivalent to “the buyer supplies the answer.” JRTT’s exact figure remained nonpublic.

The investigation threshold indicates when a price is so low that the authority must examine whether the contractor can perform properly. Knowing the exact boundary enables a bidder to sit just above an additional layer of scrutiny. Add the number and identity of rivals, their appetite for each assignment and how close one rival’s price is to the ceiling, and a bidder can calculate how little it needs to concede.

Information disclosed or exchanged	How competition could change	JRTT’s finding or reservation
Planned price and investigation threshold	A bidder can place its offer strategically around the buyer’s ceiling and low-bid review boundary.	JRTT found that its employee disclosed nonpublic values to Company A.
The other participant was Company B	A learns the number and identity of competitors and can reassess how far to cut its price.	The employee disclosed the identity and later sent A a B representative’s contact information.
A and B’s participation intentions and priority projects	Each side learns where competitive pressure is strong or weak.	JRTT found the representatives discussed these matters on April 6.
B’s Komatsu bid was near the planned price	A can infer that a higher bid may still win.	A said it increased its intended figure by about 3 percent.

Company A said the JRTT employee asked it to contact Company B. The employee denied making that request, and the report explicitly preserves the disagreement. It nevertheless confirms that the employee sent B’s contact details to A and that the company representatives subsequently exchanged sensitive bidding information. The disputed sentence was not necessary to JRTT’s conclusion: fairness in both procurements had not been maintained.

“We needed to keep the schedule” is not a defense

Schedule anxiety runs through the employee’s explanation. To complete the noise controls by the end of fiscal 2027, design, manufacture and installation had to proceed in sequence. A procurement with no bidders would need to be reopened. A low-bid inquiry would introduce more procedure. To someone responsible for delivery, the safeguards of competition may have begun to look like obstacles.

JRTT’s report rejects the idea that the pressure was objectively acute. Contingency schedules for a re-procurement had already been considered. Nor did Company A’s knowledge of the original Komatsu station design authorize the agency to steer work toward it. The conviction that one familiar supplier can complete a job fastest is a classic path toward incumbent advantage and away from open entry.

The employee reportedly understood that revealing another bidder’s information could facilitate coordination. The choice to call from home on a personal phone after hours was explained as an attempt to make contact “secretly,” because the employee knew it violated compliance rules. The employee said a supervisor had instructed the contact; the supervisor denied it, and investigators found no corroborating evidence.

The bidder, not the buyer, found the stop button

The leak began inside JRTT, but Company A’s own compliance process first stopped the procurement. On April 16, the company told the agency that it had found an internal compliance violation; on April 20 it formally withdrew from signing the Komatsu contract. Without that disclosure, the two winning decisions might have continued toward execution.

That does not turn Company A into an uncomplicated whistleblower. According to the report, its representative discussed participation and price information with Company B, then used what it learned to raise the company’s intended quote. Company B also exchanged competitively sensitive information. JRTT concluded both firms had violated its bidding rules and said it would instruct them. The published investigation anonymizes their identities.

Still, the sequence matters: a bidder’s internal controls detected what the procuring authority’s monitoring had not. Since a previous scandal in 2014, JRTT had accumulated audits, training, bidder-contact rules and outside procurement monitoring. Yet this communication traveled through a home, a personal telephone and a channel outside ordinary records. A control system that exists on paper but cannot withstand a deliberate off-channel call remains incomplete.

2014: the same railway, the same kind of secret

This case cannot be reduced comfortably to one employee’s lapse. In 2014, JRTT was at the center of another disclosure of planned-price information involving the Hokuriku Shinkansen—then the Nagano–Kanazawa section and contracts for snow-melting and de-icing base machinery.

In March 2014, the Japan Fair Trade Commission filed a criminal accusation against eight companies and eight employees. Its investigation also found that JRTT officials, including senior equipment-department staff, had given particular bidders nonpublic information about planned prices before multiple tenders. The commission issued JRTT an improvement demand under the Act on Elimination and Prevention of Involvement in Bid Rigging. A later administrative process found that 11 companies had agreed in 2011 on an order for winning the work and on cooperation to allow the designated firm to succeed. In 2015 the JFTC issued cease-and-desist orders and imposed a total ¥1.03499 billion in surcharges on seven companies.

JRTT created an outside committee and published a prevention program in September 2014. Its eight pillars covered compliance rules and training; governance and independent audit reporting; procurement monitoring with outside experts; revised procedures and evaluation records; information and contact controls; stronger discipline; proper relations with former JRTT employees working for bidders; and annual internal verification. In later performance reports, the agency said all measures had been implemented and would be reviewed so that compliance did not become hollow.

The 2026 report does not hide this history. It reproduces the older program near the back of the document. That makes the recurrence more consequential. The agency did not lack a rulebook, training, pledges, a monitoring committee or the memory of criminal proceedings. It had all of them, and confidential procurement information still escaped.

JRTT says it reviewed eight other procurements involving the same employees, examined 28 projects from the previous two fiscal years and conducted interviews extending to as many as 52 people. It found no other leaks, gifts or excessive relationships with former JRTT employees. One Company B contact was a former JRTT employee, but the report did not find an improper relationship; there is no basis to turn that fact into an unsupported tale of revolving-door corruption. There is, however, a structural question in the small technical unit, centered on two technical personnel, where opportunities for separation, challenge and consultation were thin.

The law does not wait for a cartel to be completed

Japan’s Act on Elimination and Prevention of Involvement in Bid Rigging was enacted in 2002 and took effect in January 2003 after repeated cases in which public officials assisted collusion. A 2006 amendment created the offense of procurement interference by an official, effective in March 2007. Article 8 covers an employee who, contrary to official duty, induces collusion, teaches a bidder the planned price or other procurement secrets, or otherwise harms the fairness of a tender. The maximum penalty is five years’ imprisonment or a ¥2.5 million fine.

The provision matters because it is not merely an accessory to a completed antitrust cartel among suppliers. It directly addresses conduct by the public employee that damages fairness. JRTT concluded that its employee’s actions may violate Article 8 and reported the matter to the JFTC and the National Police Agency.

JRTT suspended the employee for three months and issued stern warnings to supervisory officials. The president, vice president, president’s agent and responsible director each volunteered to return 10 percent of one month’s pay. Discipline assigns responsibility, but it does not automatically restore the competition that was lost. If A changed its intended bid by about 3 percent, the eventual re-procurement price, delay and design outcome should become part of the public accounting.

Prevention requires more than another training course

JRTT’s new measures include an instruction from the president to all employees, compliance pledges, agency-wide e-learning, case-specific training, a rule that business contacts occur with multiple employees or in open spaces, documented preapproval when that is impossible, “keep the door open” posters, and reviews of audits and bid monitoring. These steps are sensible. Many, however, resemble controls promised after 2014.

Training works when an employee does not know a rule. JRTT found that this employee understood both the secrecy obligation and the problem with contact between bidders. If the failure came from placing schedule and technical judgment above the rule, repeating the rule is not enough. The organization needs an intervention point for the moment an employee concludes, “There is no other way to finish on time.”

It should also examine whether a failed tender is treated internally as a personal failure. If officials who report weak competition are punished while officials who quietly secure a bidder are praised for delivery, the culture invites informal coordination. Schedule control and fair procurement are not competing goals. A responsible program builds room for re-notice, alternate design and staged contracting into the timetable from the beginning.

What the sound panels cannot absorb

The proposed station equipment guides sound into tiny pores and dissipates its energy as heat. It is an elegant way to release an invisible pressure safely. Public procurement needed an equivalent path for the employee’s pressure—schedule anxiety, confidence in a familiar supplier and fear of a failed bid—before it became a secret call.

After 2014, JRTT erected layers of prevention. In 2026, one opening remained large enough for a personal phone call. Company A’s internal review detected the problem and stopped the Komatsu contract before signature, limiting the damage. Yet when information about a rival changed a proposed bid, the silence of genuine competition had already been broken.

The test for JRTT is larger than announcing a suspension and returned pay. Why did the old controls fail against an employee who knew how to evade them? Did the replacement procurements recover a competitive price? Can the agency complete the noise controls without hiding the cost of delay or the consequences of its own mistake? A porous panel can absorb the sound of a train. Distrust in a public institution cannot be buried inside the wall.

Reporting Notes and Sources

This article is based on official documents and reporting available through July 29, 2026, at 10:32 a.m. JST. Company and individual names follow JRTT’s anonymized publication. The exchange-rate reference is from 9:59 a.m. JST.

• JRTT: Investigation report on the Hokuriku Shinkansen additional source-noise design procurements (July 28, 2026, Japanese)
• KHB / TV Asahi network: Report on the price leak, exchange between companies and discipline (Japanese)
• Japan Fair Trade Commission: 2014 statement on its improvement demand to JRTT (Japanese)
• Japan Fair Trade Commission: 2015 orders in the Hokuriku Shinkansen snow-control procurement case (Japanese)
• JRTT: 2017 examination of damage and compensation arising from the 2014 case (Japanese)
• Japan Fair Trade Commission: History and materials for the Anti-Bid-Rigging Involvement Act (Japanese)
• Japan Fair Trade Commission: Text of Article 8 (Japanese)