港股煤炭股午后走高，MONGOL MINING涨超12%

Group 1 - The core viewpoint of the article highlights a significant rise in Hong Kong coal stocks on September 15, with notable increases in share prices for various companies [2] Group 2 - MONGOL MINING experienced a surge of over 12% in its stock price [2] - Yanzhou Coal Mining Company (兖矿能源) saw an increase of more than 5% [2] - China Qinfa (中国秦发) rose by over 3% [2] - Yida Zong (易大宗) and China Shenhua (中国神华) both increased by more than 2% [2]