Weltrend Semiconductor's Q1 Net Profit Jumps 475% as Sheng Da Technology Acquisition Fuels AI Cooling IC Dominance

What Drove Weltrend's Record Q1 Profit?

Weltrend Semiconductor (偉詮電) recorded its highest-ever first-half revenue this year, with first-quarter net profit after tax rising 475% year-on-year, according to a report by TechNews (finance.technews.tw) (E1). The report attributes much of this jump to the company's motor and fan control IC business, whose revenue climbed 70% year-on-year in the first quarter, which TechNews says was driven by investment in AI hardware buildout (E8).

Background, Timeline, and Method of the Sheng Da Technology Acquisition

Founded in 1989, Weltrend's traditional strengths were Type-C fast-charging power delivery control chips and power management chips for laptops and gaming consoles, per TechNews (E2). CEO Lin Chung-tao (林崇燾), who joined the company in 2014 (E3), told TechNews the opportunity to expand into cooling-related ICs arrived in 2022, during the COVID-19 pandemic (E4). At the time, Sheng Da Technology (陞達科技), a company with a team of only 50 people, was unable to secure wafer capacity or find R&D talent, according to the report (E4).

Lin said he persuaded Sheng Da's major shareholder, Nichicon Trading (日電貿), to sell; Weltrend first acquired 51% of Sheng Da's equity, and in 2025 completed a share-swap transaction that fully delisted Sheng Da (E5). Lin also told TechNews that secrecy around the deal was tight before the announcement: only he, the chairman, and the CFO knew of it in advance (E10).

Market Share Shift in Motor/Fan Control ICs

Per TechNews, the merger produced a clear synergy effect: the combined companies' market share in motor/fan control ICs rose from 17% to roughly 40% (E6).

Lin Chung-tao on the IC Design Industry's Structural Squeeze

Lin described the position of Taiwan's more than 200 IC design companies as structurally weak, telling TechNews: "Above us are extremely strong foundries, and below us is pressure from Taiwan's major system makers — we're squeezed in the middle, with very weak bargaining power" (E9).

Weltrend's Full 2025 (114) Financial Panorama

Financial data compiled by MoneyDJ show Weltrend's full fiscal-year 2025 (Republic of China year 114) consolidated results as follows:

(E11, E12, E13, E14, E15, E16, E17, E18, E19)

Lin Chung-tao's Outlook for 2025 Revenue and Profit

Lin told TechNews that 2025 revenue grew 15% and profit nearly doubled (E7). He attributed this in part to the first quarter's 70% year-on-year growth in fan motor control ICs, which he said was driven by AI hardware investment and offset a slight decline in the company's power management business (E7, E8).

What This Means

The figures reported by TechNews and MoneyDJ point in the same direction: a segment shift rather than a broad-based rebound. The 475% jump in Q1 net profit (E1) and the 70% year-on-year growth in motor/fan control ICs (E8) both trace back to the same underlying event — the 2022–2025 absorption of Sheng Da Technology (E4, E5), which lifted combined market share in that segment from 17% to about 40% (E6). At the same time, Lin's own account of 15% revenue growth and near-doubled profit for full-year 2025 (E7), set against MoneyDJ's fiscal-year data showing NT$3.02 EPS and NT$563,034 thousand in net income (E17, E15), shows a company whose growth is concentrated in AI-linked cooling ICs even as its founder describes IC design firms broadly as squeezed between foundries and system makers (E9).