高盛-中国科技：第三季度 BT 基板因材料成本上涨而提价；上调所有基板厂商目标价

Investment Rating - The report maintains a "Buy" rating on ZDT and raises the target price (TP) to NT$140 from NT$130, maintains a "Neutral" rating on Unimicron and NYPCB with TP raised to NT$97 and NT$110 respectively, and maintains a "Sell" rating on Kinsus with a new TP of NT$70 from NT$63 [8][21][31]. Core Insights - The increase in BT substrate prices in early Q3 2025, driven by T-glass and gold price hikes, is expected to improve revenue trends for substrate makers, particularly Kinsus and NYPCB, with BT revenue exposure projected to exceed 25% of total revenue in 2025 [2][3]. - The report anticipates a potential further pricing hike for high layer count ABF substrates in the coming months, which could enhance revenue and profitability outlook for substrate suppliers in the second half of 2025 [3][7]. - The T-glass shortage is expected to ease by the first half of 2026, which may stabilize pricing levels despite the current supply constraints [4][7]. Summary by Sections Pricing and Revenue Outlook - BT substrate prices have increased by 5%-20% in early Q3 2025 due to T-glass supply tightness and rising gold prices, which account for 30-40% of BT cost of goods sold (COGS) [1][2]. - The report expects improved profitability for BT substrates in the second half of 2025 compared to the first half, despite potential unfavorable gross margin and operating profit margin conditions due to material cost hikes and currency appreciation [2][3]. Company-Specific Earnings Revisions - Unimicron's 2025 earnings estimate has been cut by 25% due to unfavorable foreign exchange conditions, while revenue is expected to increase by 1% [17][19]. - NYPCB's earnings estimates for 2025, 2026, and 2027 have been revised up by 3%, 11%, and 7% respectively, reflecting a positive outlook on substrate pricing [23][25]. - Kinsus's 2025 earnings estimate has been reduced by 16% due to unfavorable FX conditions, but 2026 and 2027 estimates have been increased by 10% and 11% respectively [28][30]. - ZDT's earnings estimates for 2025, 2026, and 2027 have been revised down by 17%, 1%, and 1% respectively, primarily due to unfavorable FX conditions [33][35].