监管工作函的回复公告 本公司董事会及全体董事保证本公告内容不存在任何虚假记载、误导性陈述或者重大遗漏，并对其内容 的真实性、准确性和完整性依法承担法律责任。 四川天微电子股份有限公司（以下简称"公司"）于2026年1月23日收到上海证券交易所上市公司管理二 部发送的《关于四川天微电子股份有限公司业绩预告相关事项的监管工作函》（上证科创公函【2026】 0030号）（以下简称"《工作函》"），公司会同年审会计师事务所四川华信（集团）会计师事务所（特 殊普通合伙）（以下简称"四川华信"或"年审会计师"）就《工作函》有关问题逐项进行了认真的核查落 实，现就相关问题回复如下： 登录新浪财经APP 搜索【信披】查看更多考评等级 证券代码：688511 证券简称：*ST天微 公告编号：2026-008 四川天微电子股份有限公司 关于对上海证券交易所业绩预告相关事项的 问题一、公告显示，公司预计2025年营业收入同比增长67.19%到105.77%，主要系本年订单增加所致。 请公司补充披露：（1）报告期内前十大客户主要销售产品、销售金额、是否为关联方或新进入客户、 收入确认依据、应收账款收回情况等；（2）对于按暂定价格确认 ...

Investment Rating - The report maintains a "Recommended" rating for the company [2][6]. Core Insights - The company achieved a significant revenue increase of 35.05% year-on-year, reaching 2.845 billion yuan, while the net profit attributable to shareholders surged by 115.87% to 473 million yuan in 2024 [3][4]. - The strong performance is attributed to robust sales in two core product lines, with power semiconductor chip production and sales increasing by 43.93% and 63.10% respectively, leading to a revenue growth of 44.59% and a gross margin of 23.47% [4]. - The company is expanding its product structure with a new 6-inch wafer production line, which has reached a capacity of 50,000 pieces per month, enhancing its offerings in the power semiconductor sector [5]. - A subsidiary focused on high-end isolation chips has been established, aiming to tap into new growth areas in high-end manufacturing and domestic substitution, with expected sales of around 5 million yuan in 2025 [6]. Financial Performance Summary - The company reported a total revenue of 2,845 million yuan for 2024, with a year-on-year growth rate of 35.05% [12]. - The net profit attributable to shareholders for 2024 was 473 million yuan, reflecting a growth rate of 115.87% [12]. - The projected earnings per share (EPS) for 2025, 2026, and 2027 are expected to be 0.78 yuan, 1.02 yuan, and 1.35 yuan respectively [6][12].