锡业股份涨2.02%，成交额5.48亿元，主力资金净流出2797.81万元

Group 1 - The core viewpoint of the news is that Yunnan Tin Company has shown significant stock performance, with a year-to-date increase of 47.09% and a market capitalization of 33.26 billion yuan [1] - As of August 20, 2025, Yunnan Tin Company reported a revenue of 21.09 billion yuan for the first half of the year, representing a year-on-year growth of 12.35%, and a net profit attributable to shareholders of 1.06 billion yuan, up 32.76% year-on-year [2] - The company has a diverse revenue structure, with tin ingots accounting for 43.61% of total revenue, followed by supply chain business at 20.31% and copper products at 18.04% [1] Group 2 - The company has a total of 78,300 shareholders as of August 20, 2025, which is an increase of 4.40% from the previous period [2] - Yunnan Tin Company has distributed a total of 2.15 billion yuan in dividends since its A-share listing, with 1.10 billion yuan distributed in the last three years [3] - The top ten circulating shareholders include Hong Kong Central Clearing Limited, which holds 27.85 million shares, an increase of 4.77 million shares from the previous period [3]