Who owns Leshan-Phoenix Semiconductor Company Limited

Leshan-Phoenix Semiconductor Company Limited - Profile

Leshan-Phoenix Semiconductor Company Limited runs a semiconductor assembly and test plant on Renmin West Road in Leshan, Sichuan Province, China. It is a Sino-foreign manufacturing joint venture between onsemi and Leshan Radio Company Ltd., and it is the only one of onsemi's manufacturing sites that the company does not own and operate outright. The plant takes finished wafers and packages and tests them into discrete, power and analog devices for onsemi's Analog and Mixed-Signal Group and Power Solutions Group, occupying about 416,000 square feet of buildings on leased land. Its governing joint venture agreement works on a capacity booking model: each shareholder asks the venture's board for production capacity, and every request counts as a purchase commitment, so a shareholder that does not use the capacity it reserved still pays the cost of leaving it idle.

The disclosed stakes

One row per position. Where a holder reports the same company in two share classes, both rows are shown rather than summed, because the class is part of a position's identity.

Where each figure comes from

A private stake has no ownership form behind it, so the source is always the holder's own filing or disclosure. Anything modelled says so, with the arithmetic.

• ON Semiconductor Corporation. FY2025 10-K (filed 9 Feb 2026), Item 2 Properties: 'All of our manufacturing facilities are fully owned and operated by us, except our assembly and test operations facility located in Leshan, China, which is owned by Leshan-Phoenix Semiconductor Company Limited, a joint venture company in which we own 80% of the outstanding equity interests ("Leshan").' The joint venture partner is Leshan Radio Company Ltd., which holds the remaining 20%. Leshan's results are fully consolidated in ON's financial statements because ON exercises control. A separate note titled 'Non-Controlling Interest' in the same 10-K states: 'The Company owns 80% of the outstanding equity interests in Leshan, and the results of Leshan have been consolidated in the Company's financial statements. As of December 31, 2025, the Leshan non-controlling interest balance was $18.6 million.' That $18.6 million figure sizes Leshan Radio's 20% minority stake, not ON's own 80% interest, so it was not used to derive value_usd here; no separate fair value or carrying value for ON's own 80% share is disclosed anywhere in the filing. Exhibit 21 (list of subsidiaries) names Leshan-Phoenix Semiconductor Company Limited but is a bare name list with no ownership-percentage column, so the 80% figure comes from the 10-K body and risk-factor text, both of which restate it identically. The Q2 FY2026 10-Q (filed 3 Aug 2026, period ended 3 Jul 2026) was searched for 'joint venture', 'equity method', 'non-marketable', 'unconsolidated' and 'minority interest' and returned no contradicting or updated figure, so the FY2025 10-K figure is treated as current. sourcesource 2