Several high-performing stocks have issued risk warnings due to sharp price surges. On the evening of December 2, multiple stocks with significant short-term gains cautioned investors about trading risks. Among them, Ruineng Technology (4 consecutive limit-ups) clarified that it is not engaged in robot manufacturing. Daoming Optics (4 consecutive limit-ups) stated it currently has no AI smartphone-related business. Haixin Food (5 consecutive limit-ups) emphasized that its core operations remain unchanged, warning of irrational speculation risks amid rapid price increases.

Additionally, Saiwei Electronics noted its stock price has surged 252.84% year-to-date in 2025, with recent sharp spikes in turnover and trading volume indicating overheated market sentiment, posing potential correction risks.

**Key Company Disclosures:** 1. **Ruineng Technology** warned of a 51.36% cumulative rise since November 24, 2025, highlighting risks of post-rally declines. The company clarified its focus on industrial automation control products and IC distribution, with minimal (1.02%) revenue from robotics applications. Major shareholder Pingtan Jierun has reduced holdings by 1.5 million shares, with further减持 planned.

2. **Daoming Optics** addressed volatility, denying any material undisclosed information or AI smartphone operations despite market speculation. It cautioned about macroeconomic, accounts receivable, and competitive risks affecting future performance.

3. **Shunhao Holdings** responded to "commercial aerospace concept" hype, disclosing its 19.3% stake in轨道辰光 (a satellite-based computing service provider). However, it noted limited synergy with its core business and warned of commercialization uncertainties spanning 5–10 years, with minimal 2025 financial impact.

4. **Haixin Food** confirmed no fundamental changes despite rapid price gains, alerting investors to overheated market sentiment.

5. **Saiwei Electronics** detailed its 252.84% YTD surge, with a P/E (TTM) of 24.36x—below the industry average of 48.62x—attributed to one-time gains from selling瑞典Silex. Post-adjustment, P/E stands at -68.50x.瑞典Silex’s potential IPO plans remain uncertain, while the National IC Fund reduced holdings below 5%, with further减持 expected.

The companies uniformly urged investors to assess risks prudently, emphasizing long-term value over speculative trading.