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RS Technologies abandons car cameras for AI wafers, booking an unsized loss; results land November 12

RS Technologies will dissolve the Huizhou plant it inherited from Sony, cancel its automotive camera-module entry and book an extraordinary loss it has not yet sized. The resources go to the prime-wafer businesses that AI chip demand runs on.

Richard TangRichard Tang · 3 min read
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Silicon wafer surface reflecting rainbow colors across patterned semiconductor dies
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RS Technologies is concentrating capital in prime silicon wafers and reclaiming capacity as semiconductor demand expands.

RS Technologies+1.58% — RS Technologies, up 1.58 percent today has concluded that its plan to enter China's car-camera business cannot reach the returns it requires, and the market has spent the days since the vote repricing the company 1. On October 9 the board of the Tokyo-listed wafer reclaimer, which also makes new prime wafers, resolved to dissolve RS Precision Devices (Huizhou), or RSPDH, the plant taken over from Sony−0.32% — Sony, down 0.32 percent as of its last quote in December 2024, and cancel the camera-module entry built around it 1.

The shares closed at ¥6,120 on the day of the vote and at ¥5,170 on October 20, roughly 15 percent lower 34. Closing the unit is the right call, and the reason is not that it loses money.

A profitable unit is being closed anyway

RSPDH kept making optical pickup modules, the laser assemblies that read discs, in a market RS itself describes as contracting, and it was to become the base for camera modules in Chinese cars 1.

RS spent 2025 negotiating to buy the optics maker Jiangxi Shinetech Precision Optical through a subscription for new shares, ended those talks on July 24, and reviewed several other targets; none met its investment criteria 1. After roughly two years of assessment it judged competition keener, prices worse than modeled, and the profitability it wanted over the medium term unreachable 1.

The unit being dissolved still makes money. It booked ¥15.2 billion of net sales 2. Ordinary income was ¥1.3 billion, and net income ¥850 million 2. What RS is closing is a business whose profits rest on a disc market that keeps shrinking, with the camera growth meant to replace it now abandoned 1.

The dissolved Huizhou unit generated ¥15.2B in sales and ¥850M in profit

¥0M¥5,000M¥10,000M¥15,000M¥20,000MNet sales¥15,200MOrdinary income¥1,300MNet income¥850M
Data
Value
Net sales¥15,200M
Ordinary income¥1,300M
Net income¥850M
RSPDH earnings before dissolution, in millions of yen. Source: RS Technologies corporate disclosure via Japan IR.2

The capital now follows the wafer chain

AI chips are cut from silicon wafers, and RS has spent 2026 buying more of the chain that turns that demand into revenue 4. In September it resolved to take GRITEK, its Shanghai-listed prime-wafer subsidiary, toward full ownership together with large stakes in two Shandong Yuken wafer-materials companies, with completion planned for 2027 4. The deal is financed with newly issued shares, so existing shareholders fund the expansion through dilution rather than cash 4.

The year's other moves point the same way: a 60 percent stake in Anhui Jinglong Semiconductor in July, and a prime-wafer plant in Inner Mongolia announced in March 3. First-half ordinary income rose 26 percent, ahead of sales 4. AI demand reaches RS only as fast as the company can supply wafers, and capacity is what these purchases address.

The write-off still has no number

Shareholders hold an extraordinary loss with no figure attached yet 2. Operations stop at the end of December, liquidation completes in May 2027, and third-quarter results on November 12 give the first chance to size it 23. The fall has landed on shares that were up 62 percent for the year on the day of the vote 3.

The size of that fall suggests investors are charging for the lost years and the unsized write-off rather than for the pivot itself, since wafer earnings were strong in the first half and the news since the vote is the exit and the loss it triggers 4.

The redirect is right: every model trained and every datacenter built pulls demand down the chain to purified silicon, and RS now sits across more of it. Holders pay at both ends, a write-off on the way out and newly issued shares on the way in. Whether AI demand absorbs the new capacity is the projection still standing; the exit is fact, and its price lands on November 12.

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