Three Companies, Two OwnersNarrow moat
Kioxia Holdings (285A) — moat facet
Kioxia books its share of the fabs directly rather than as an investment, which tells you it owns half a factory rather than shares in one.
The mechanics are worth reading carefully, because the accounting tells you what the arrangement actually is.
Flash Ventures is three separate entities — Flash Partners Ltd., Flash Alliance Ltd. and Flash Forward LLC, all registered in Yokkaichi, Mie — in which Kioxia holds 50.1% of the voting rights and, the filing states, shares decision-making equally with Sandisk1. Kioxia does not account for them as investments or associates. It accounts for them as joint operations, recognising its own share of the assets, liabilities, income and expenses directly2.
That distinction matters. An equity stake in a fab company is a financial asset. A joint operation is half a factory on your own balance sheet, with half the depreciation running through your own cost of sales. It is why Kioxia's accounts look like those of a company that owns nine fabs rather than one that owns two and rents from a partner.
Seven of the nine plants sit inside this structure — six at Yokkaichi and one at Kitakami3.
The consequence to hold on to is that the majority of Kioxia's manufacturing base is jointly controlled. That is unusual enough that no other company in this collection has an equivalent.
The measure is straightforward: what proportion of output comes from wholly-owned capacity. It is the minority, and it has been for twenty years.
The structure is twenty years old and unchanged: three joint operations, 50.1% of the voting rights, equal decision-making, seven of nine plants.
Kioxia books its share of the ventures' assets directly, so their fabs sit on its own balance sheet. A higher equity ratio makes that capital-heavy structure safer.
Source: BigGo Finance, Kioxia Q1 FY2026 earnings call ↗- ReportedKioxia holds 50.1% of the voting rights in the three Flash Ventures entities and shares decision-making equally with Sandisk.Kioxia Holdings Corporation, Annual Securities Report for the year from 1 April 2025 to 31 March 2026 (8th Period) — revenue ¥2,337,628M against ¥1,706,460M, gross profit ¥1,012,904M, operating profit ¥869,013M, profit for the year ¥554,490M; research and development cost ¥141,052M against ¥132,798M; purchases of property, plant and equipment ¥281,062M against ¥223,847M; operating cash flow ¥616,540M; proceeds from government grants ¥56,396M against ¥43,748M, from an approved ceiling of ¥150.0bn for flash production at the Yokkaichi and Kitakami plants with about ¥31.8bn not yet received. Revenue by application: SSD & Storage ¥1,362,638M, Smart Devices ¥759,978M, Other ¥215,012M — 'Other' including retail products and sales to the Sandisk group recorded through the three manufacturing joint ventures. Revenue by geography: Japan ¥263,252M, North America and Europe ¥1,217,643M, Asia ¥856,733M, with the United States ¥1,098,832M, China ¥381,857M and Taiwan ¥300,932M. Non-current assets: Japan ¥1,658,950M, North America and Europe ¥1,986M, Asia ¥6,298M. Major customers: Apple group ¥476,014M (20.4%), with the Sandisk and Dell groups omitted for the year as each fell below 10% of sales. Flash Partners Ltd., Flash Alliance Ltd. and Flash Forward LLC are accounted for as joint operations with 50.1% of the voting rights and equal decision-making rights shared with Sandisk. Net interest-bearing debt ¥552,085M against equity of ¥1,398,929M — a net debt-to-equity ratio of 0.39 times, from ¥931,035M against ¥737,565M and 1.26 times a year earlier; USD-denominated senior notes at 6.25% (2030) and 6.625% (2033); goodwill of ¥395,585M from the 1 June 2018 acquisition of the former Toshiba Memory Corporation. Bain Capital funds indirectly hold 21.87% and Toshiba Corporation 17.59% of outstanding common shares, both having sold substantial holdings during the year. Risk factors state that the Yokkaichi Plant is located in an area with a high risk of earthquakes and floods and the Kitakami Plant in an area severely damaged by the 2011 Tohoku Earthquake, and name US-China trade frictions and US tariff policy among factors that may materially affect the business. The company does not provide plans or progress reports for the overall fiscal year. — year to 31 March 2026 · publ. 2026-06 · source ↗
- ReportedThey are accounted for as joint operations, with Kioxia recognising its own share of the assets, liabilities, income and expenses.Kioxia Holdings Corporation, Annual Securities Report for the year from 1 April 2025 to 31 March 2026 (8th Period) — revenue ¥2,337,628M against ¥1,706,460M, gross profit ¥1,012,904M, operating profit ¥869,013M, profit for the year ¥554,490M; research and development cost ¥141,052M against ¥132,798M; purchases of property, plant and equipment ¥281,062M against ¥223,847M; operating cash flow ¥616,540M; proceeds from government grants ¥56,396M against ¥43,748M, from an approved ceiling of ¥150.0bn for flash production at the Yokkaichi and Kitakami plants with about ¥31.8bn not yet received. Revenue by application: SSD & Storage ¥1,362,638M, Smart Devices ¥759,978M, Other ¥215,012M — 'Other' including retail products and sales to the Sandisk group recorded through the three manufacturing joint ventures. Revenue by geography: Japan ¥263,252M, North America and Europe ¥1,217,643M, Asia ¥856,733M, with the United States ¥1,098,832M, China ¥381,857M and Taiwan ¥300,932M. Non-current assets: Japan ¥1,658,950M, North America and Europe ¥1,986M, Asia ¥6,298M. Major customers: Apple group ¥476,014M (20.4%), with the Sandisk and Dell groups omitted for the year as each fell below 10% of sales. Flash Partners Ltd., Flash Alliance Ltd. and Flash Forward LLC are accounted for as joint operations with 50.1% of the voting rights and equal decision-making rights shared with Sandisk. Net interest-bearing debt ¥552,085M against equity of ¥1,398,929M — a net debt-to-equity ratio of 0.39 times, from ¥931,035M against ¥737,565M and 1.26 times a year earlier; USD-denominated senior notes at 6.25% (2030) and 6.625% (2033); goodwill of ¥395,585M from the 1 June 2018 acquisition of the former Toshiba Memory Corporation. Bain Capital funds indirectly hold 21.87% and Toshiba Corporation 17.59% of outstanding common shares, both having sold substantial holdings during the year. Risk factors state that the Yokkaichi Plant is located in an area with a high risk of earthquakes and floods and the Kitakami Plant in an area severely damaged by the 2011 Tohoku Earthquake, and name US-China trade frictions and US tariff policy among factors that may materially affect the business. The company does not provide plans or progress reports for the overall fiscal year. — year to 31 March 2026 · publ. 2026-06 · source ↗
- ReportedFlash Ventures spans seven manufacturing facilities in Japan, six in Yokkaichi and one in Kitakami.Sandisk Corporation, Form 424B4 prospectus (SEC, CIK 2023554) — Sandisk and Kioxia operate three business ventures, Flash Partners Ltd., Flash Alliance Ltd. and Flash Forward Ltd. (collectively 'Flash Ventures'), across seven flash-based manufacturing facilities in Japan, six in Yokkaichi and one in Kitakami, with an eighth beginning operations in calendar year 2025. 'We co-develop flash technologies (including process technology and memory design) with Kioxia for Flash Ventures' use. We and Kioxia jointly own these co-developed flash technologies.' 'Substantially all of our flash-based memory is obtained from our joint ventures with Kioxia... While substantially all of our flash memory supply utilized for our products is purchased from these ventures, from time to time, we also purchase flash memory from other flash manufacturers.' Sandisk names Kioxia, Micron, Samsung, SK Hynix and YMTC among its competitors, and completed its separation from Western Digital in February 2025. — FY2025 · publ. 2025-05 · source ↗