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Tokei Precision Optics, Tai'ei's Yingchuang Settle Maintenance Terms — Main Contract Nears Agreement Within the Month

Wednesday, October 21, 2026 (Torek 52) — Business Desk, Ren Kaiya

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Tokei Precision Optics and Tai'ei's major parts maker Yingchuang Technology announced on the 21st that they had settled the maintenance-regime issue, the last point outstanding in their main-contract negotiations over precision lens components for window rigs. Following the previously reported agreement on inspection standards on the 16th, no points remain unresolved, putting the companies in the final stretch toward a formal agreement targeted for the end of October. Wen Xuanwu, Yingchuang's negotiating liaison previously reported in these pages, commented, "The dialogue between engineers on the ground is finally about to be fixed into a system."

Tokei Precision Optics announced on the 21st that, in its main-contract negotiations with Tai'ei's major parts maker Yingchuang Technology over precision lens components for window rigs, the maintenance regime — the last point remaining since talks began, as previously reported on the 1st — had been settled. Following the previously reported agreement on inspection standards on the 16th (full inspection on the first batch, a 5% sampling rate thereafter, reverting to full inspection if the defect rate is exceeded), every major point making up the main contract, including the previously reported supply price (base price plus 3%) and delivery schedule (quarterly units), is now settled. Satoru Odagiri, 52, the company's president previously reported in these pages, said, "About three weeks since the draft agreement, we've knocked down the issues one by one. All that's left now is finalizing the formal contract's wording."

The settled maintenance regime reportedly works as a two-stage structure: if a defect arises in a Yingchuang-made lens component built into a window rig, Tokei-side engineers handle initial response first, and if unresolved, Yingchuang-side engineers travel to Tokei to follow up. The standard response windows were set at within 48 hours for initial response, and within two weeks if a visit from Tai'ei is required. A Tokei Precision Optics engineering official said, "Many window rigs are built on the assumption of 24-hour operation. Having the initial maintenance response fixed at within 48 hours gives real peace of mind on the ground."

Wen Xuanwu, Yingchuang's business liaison previously reported since his first appearance on October 2, who has served as the negotiating contact, commented, "The maintenance regime is easy enough to describe in words, but working out exactly who moves and when was difficult. I'm glad the dialogue between engineers on the ground has finally reached the stage of being fixed into a system." As previously reported, Wen had said, upon the inspection-standards agreement, that "the dialogue between engineers on the ground is only just beginning" — making today's news a milestone where that dialogue crystallizes into a system.

As previously reported, settling the supply price had required deciding which side bears the burden of yen-to-Tai'ei-currency exchange fluctuations, resolved through a mechanism that revisits the base price each quarter. For the maintenance regime too, the cost split for travel and lodging expenses tied to visits from Tai'ei was worked out as a line item, with part of the rise in parts-procurement costs from the previously reported rate hike by the British Reinsurance Union (BRU) factored into the settlement here as well. A Tokei Precision Optics finance official said, "Building a mechanism that revisits even maintenance costs each quarter has, I think, laid the groundwork for a long-term trading relationship."

Tokei Precision Optics shares rose a modest 0.4% on the 21st. One market participant said, "Most of the material was already priced in by the time inspection standards were settled. The maintenance regime matters practically, but in terms of stock impact it's within the expected range." Tokei Drift Index (TDI) futures on the Hoshujima exchange also showed no notable movement.

Separately, this paper reports elsewhere today that government-to-government talks toward the Window Treaty's formal signing will begin in November (see related coverage). A Tokei Precision Optics executive said, "Even once the main contract is finalized, as long as the Window Treaty memorandum's handling isn't settled, there remains a chance it could affect supply terms with technology-partner nations like Tai'ei. That's a separate tug-of-war we simply have to keep watching," stressing that the main contract's settlement and the treaty negotiation's course are separate threads.

Tokei Precision Optics again signaled it expects to announce a formal agreement by the end of October, pending finalization of the contract's wording. President Odagiri summed up, "I've tried to keep my distance from the 'de-risking from Deutsche' framing, but building this much detailed structure with Tai'ei shows, I think, that the direction of broadening our options is the right one." Plans are reportedly under consideration for Yingchuang engineers to travel to Tokei as early as next month to conduct the first maintenance-regime training session, once the formal agreement is reached.

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— Translated from the Japanese edition. The signal is one-way; corrections cannot be sent back.