82岁“建工爷叔”套牢10年刚解套，上海建工又遭“天地板”

Core Viewpoint - Shanghai Construction Group (600170) experienced significant stock price volatility, with a rapid rise followed by a sharp decline, highlighting the impact of market speculation and the company's underlying financial performance [1][2][6] Group 1: Stock Performance - Shanghai Construction's stock price surged to a 10-year high of 3.88 CNY per share on September 18, 2023, before hitting the daily limit down at 3.49 CNY shortly after market open on September 19, 2023 [1] - The stock experienced five consecutive trading days of gains, driven by news related to its gold mining resources, but subsequently faced a sharp decline, leading to trading risk warnings from the company [1][3] - The stock's volatility attracted attention, particularly the story of an 82-year-old investor, known as "Construction Uncle," who finally saw his long-held shares break even after a decade of losses [1][2][8] Group 2: Gold Mining Resources - The recent rise in stock price was linked to positive news regarding the Koka gold mine, which reported an increase in resource reserves by 338,900 ounces, valued at approximately 4.27 billion CNY [3][4] - Despite the positive news, gold mining contributes minimally to the company's overall revenue, with gold business sales ranging from 400 million to 1.06 billion CNY, accounting for less than 0.5% of total revenue from 2019 to mid-2025 [3][7] - The company has a 60% stake in Zara Mining, which has been a point of speculation, but the actual contribution to financial performance remains limited [3][5] Group 3: Financial Performance - Shanghai Construction reported a significant decline in financial performance, with a 28.04% drop in revenue to 105.04 billion CNY and a 23.2% decrease in total profit to 1.08 billion CNY in the first half of the year [6][7] - The company's core business, construction, generated 92.11 billion CNY in revenue, making up 88.27% of total revenue, indicating that gold mining is a minor aspect of its operations [7] - The overall gross margin for construction-related activities is approximately 7.37%, while the gold mining business boasts a much higher gross margin of 26.74%, suggesting a disparity in profitability between the two segments [7]