Shanghai Harbour: Commercial aerospace business and calcium titanic solar business account for less than 1% of the company's revenue.

Shanghai Port Stock Trading Risk Warning Notice, the company's main business is geotechnical treatment, pile foundation engineering and other soil engineering related businesses. As of now, the company's main business has not changed. According to the audited 2024 financial data, the commercial aerospace business and the calcium titanium solar energy business account for less than 1% of the company's revenue, with a small scale and not yet profitable. The above-mentioned matters have no substantial impact on the company's current main business operations. Investors are advised to make decisions carefully and invest rationally.