GlobalWafers, the Taiwanese silicon wafer maker, plans to issue up to $500 million of 10-year convertible bonds to Micron Technology as the only subscriber, its board resolved on 3 November, according to its filing on Taiwan’s MOPS disclosure system. The same day, its results showed capital spending of NT$8,876 million in the first nine months of 2026, down 66.0% from NT$26,112 million a year earlier, by our arithmetic.
The bonds carry a 0.5% annual coupon and need shareholder approval at an extraordinary meeting on 21 December, a second filing says; the share register closes from 22 November. The deal was flagged again on X on 15 November by @OptionKing666, whose post said capex peaked in 2026; on the earnings call, management said capex has already come down from its peak.
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The key insight: As we read the filings, Micron is paying to keep a wafer supplier’s US capacity while that supplier spends far less: GlobalWafers’ capex fell 66.0% in the first nine months, by our arithmetic, and the up-to-$500 million bond, at a 0.5% coupon, cannot in principle be freely transferred for three years after delivery, its filing says.
The filing caps the bonds at a total face value of $500 million, in $1,000 units, to be issued in one go within a year of the shareholders’ approval. The issue price must be at least 80% of a theoretical price set by a pricingmodel, and the bonds are unsecured. Proceeds go to what the filing calls strategic needs such as business development and improving supply capability.
The filing names Micron, a customer, as the subscriber already arranged. It says the two plan a 10-year long-term supply agreement, and that the placement supports advanced memory demand driven by AI, high-performance computing and data centres. Privately placed securities in principle cannot be freely transferred for three years after delivery, which the filing says keeps the partnership long term.
GlobalWafers’ capital expenditure in the first nine months and the third quarter, 2025 against 2026, in NT$ million, from its Q3 2026 results presentation. Percentage changes are our arithmetic.
Micron’s Side of the Deal
Micron announced the money in July. Its press release of 9 July said it would “provide GlobalWafers Co., Ltd. with $500 million in strategic financing support” for the GlobalWafers America 300mm wafer plant in Sherman, Texas. The release framed it as part of an investment of up to $3 billion in the US supply chain, and said the two would enter a 10-year supply agreement.
On the call, GlobalWafers said the bond “is exactly the strategic funding referenced when GlobalWafers and Micron announced the long-term collaboration”, according to a transcript published by Investing.com. Asked why it chose a convertible bond over a prepayment, the company said a prepayment is linked more directly to future purchases, while this funding also supports its US operations.
What the Results Show on Capex
GlobalWafers’ results presentation puts third-quarter capex at NT$3,214 million, against NT$7,018 million a year earlier, a fall of 54.2%, by our arithmetic. Nine-month capex of NT$8,876 million compares with depreciation of NT$6,904 million, or 1.29 times, by our arithmetic.
Management said on the call that “CapEx has already come down from its peak and expected to decline significantly in 2026 compared with 2025”. Management said capex for 2027 and 2028 depends on customer demand, ramp-up and debottlenecking, and listed substantial customer demand, long-term commitment and government support as key considerations for any new investment.
The presentation says existing capacity across all wafer sizes is at full utilization. Cash and cash equivalents rose to NT$60,800 million at the end of September from NT$23,776 million in June, 2.6 times, by our arithmetic, mainly from what the company calls the $1.4 billion September GDR. Short-term loans, which include current portions of bonds, rose to NT$77,203 million from NT$38,282 million. The $500 million bond is about a third of that GDR, by our arithmetic.
GlobalWafers’ cash and short-term loans at the end of June and September 2026, NT$ million, from its Q3 2026 results presentation; short-term loans include current portions of bonds. The 2.6 times is our arithmetic.
As we read the structure, a convertible bond gives Micron more than a prepayment would: the company said on the call that a prepayment is linked more directly to future purchases, while this funding also supports its US operations.
As we read the capex figures, management’s own words differ from the framing on X: it said capex has already come down from its peak, and that new investment needs customer commitments and government support.
GlobalWafers, on its Q3 2026 earnings call, 3 November 2026 (transcript via Investing.com)
“CapEx has already come down from its peak and expected to decline significantly in 2026 compared with 2025.”
Three Implications
FOR GLOBALWAFERS Up to $500 million of 10-year funding at a 0.5% coupon, if shareholders approve on 21 December, its filing says.
FOR MICRON Its July press release said it would provide GlobalWafers with $500 million in strategic financing support for the Sherman, Texas wafer plant.
The framework argues: “While attention remains fixed on GPU shortages and frontier model capabilities, the binding constraint on AI scaling has quietly shifted to High Bandwidth Memory (HBM).”
As we read it, the GlobalWafers bond shows a memory maker reaching one step further up the chain, to the silicon wafer. The framework predates this deal and does not discuss GlobalWafers.
What Is Not Established
The conversion price is not set: the filing says only that the issue price must be at least 80% of a theoretical price, and it lists dilution as not applicable at this stage. The 10-year supply agreement is described as planned; its volumes and prices are not disclosed.
The deal still needs shareholder approval on 21 December. The call transcript is a third-party version published by Investing.com. GlobalWafers and Micron were not contacted for this piece.
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GlobalWafers’ board has approved up to $500 million of 10-year, 0.5% convertible bonds for Micron, subject to a shareholder vote on 21 December, its filing says. Its capex in the first nine months of 2026 was NT$8,876 million, down 66.0% from a year earlier, by our arithmetic.
A note on sourcing. The bond terms and the shareholders’ meeting are from GlobalWafers’ two material-information filings on Taiwan’s MOPS system of 3 November 2026, read in the original Chinese; capex, depreciation and balance-sheet figures are from its Q3 2026 results presentation of the same day. Management’s remarks are from a third-party transcript of the earnings call published by Investing.com. Micron’s July commitment is from its press release of 9 July 2026. Percentage changes and ratios are our arithmetic. GlobalWafers and Micron were not contacted for this piece.
Gennaro Cuofano is a CRO and tech executive who has worked in AI since late 2015, starting with bringing NLP, natural-language generation, voice and chatbot products to the marketing industry. His background is in law and finance: he holds a Master's degree in Law and an International MBA with an emphasis on corporate finance (LUISS Business School and the University of San Diego, 2012), and worked as a financial analyst at a real-estate investment firm in San Diego and as an assistant controller. His work focuses on business model strategy, business engineering and, more broadly, structural analysis: how companies make money, read from their own filings. He created FourWeekMBA and leads research there and at The Business Engineer, his newsletter on AI and business strategy, with over 95,000 subscribers and more than 1,000 published analyses. His writing has also appeared on Entrepreneur (for example, How to Digitize a Family Business in Europe) and HackerNoon. Find him on LinkedIn and Substack. See how we source.
