The Micron strike in Taiwan was scheduled as a one-day warning on Thursday, Oct. 22, at the chipmaker’s Taoyuan plant. The evening before, the company’s other union, the much bigger one at its Taichung site, signed an agreement with Micron and called off a mediation session set for the same day. Neither side said what was in it.
That left the smaller group holding the line. Taichung has about 12,300 workers, roughly 11,000 of them union members, according to Focus Taiwan figures cited by Quartz. Taoyuan has about 3,000 workers and about 2,400 members. But the size gap matters less than the demand. The Taoyuan union isn’t mainly asking for a bigger check. It is asking for a formula.
Micron has already offered money. In September it announced rewards that Focus Taiwan valued at 35 to 68 months of pay, including a NT$1 million cash bonus (about $31,000) for its Taiwan staff. The union wanted something else. In its strike notice, reported by Reuters, it asked for a firm number for this year’s one-off bonus and a profit-sharing system that workers can calculate in advance. Its standing ask is 15% of operating profit, paid every quarter. It even named the model it wants Micron to copy: its Korean rivals.
Here is what a profit-sharing formula means in plain terms. Instead of fighting over a bonus every year, the company writes down a fixed slice of its operating profit (the money it makes from its main business, before interest and taxes) and pays that slice to staff. Big year, big pool. Weak year, small pool. The math does the arguing.
Korea wrote that rule first. SK Hynix agreed in September 2025 to put 10% of its annual operating profit into the bonus pool, scrap the old cap of 1,000% of base salary, and keep the system for 10 years, Korea JoongAng Daily reported. Samsung Electronics followed in May 2026 with 10.5% of its chip division’s operating profit, in a deal that called off a planned 18-day strike.
What the Taiwan debate mostly skips is what happened next in Korea. Profits got so big that SK Hynix management came back to the table a year early. Brokers projected the company could earn about 250 trillion won in operating profit this year, Nocut News reported. Ten percent of that is 25 trillion won, roughly $19 billion, or about 700 million won per employee before tax. SK Group chairman Chey Tae-won admitted in July that nobody saw chip profits this large coming.
The company’s answer was to pay part of the bill in shares. An August deal would have paid 60% of the bonus in SK Hynix stock. Union members rejected it by 25 votes, 7,535 to 7,510. A revised deal passed on Sept. 16 with 57% support: half cash, half stock, and workers can choose more stock in 10% steps if they want it.
For shareholders, this is the part worth watching. A wage is a fixed cost. A formula bonus is closer to a partner in the profits. It shrinks in a bad year, which helps, and it grows in a boom, which takes a slice of every great quarter. Paying it in stock keeps cash inside the company, but those shares have to come from the company’s own stock, shares it could otherwise have canceled to lift everyone else’s stake. The cost doesn’t disappear. It moves from the cash line to the share count.
That is why the Micron strike matters beyond one day of shifts. Micron makes about 50% to 60% of its chips in Taiwan, according to Silicon UK. One day off the line by a minority of staff probably won’t move output much. The bigger question is what Taichung signed on Wednesday, and whether it looks like a formula. If it does, the next argument in Taiwan won’t be about the percentage. It will be about what form the money takes. For background on why Micron has this much profit to fight over, see Micron’s beat-and-raise quarter.
My take: Win the formula, and the next fight is over what it gets paid in.
Not advice. Just how I see it.