黄金概念持续走强，上海建工、明牌珠宝、湖南白银涨停

Group 1 - The gold concept continues to strengthen, with companies like Shanghai Construction, Mingpai Jewelry, and Hunan Silver hitting the daily limit up [1] - Xiaocheng Technology saw a rise of over 12%, indicating strong market interest [1] - Other companies such as Shanjin International, Silver Yousheng, Baoding Technology, and Chaohongji also experienced gains, reflecting a broader trend in the gold and silver sectors [1]