Gold miner Zhaojin Mining Industry, which is based in Shandong province, posted a 28.3 per cent year-on-year rise in net profit to 720.13 million yuan (HK$876.61 million) for the year's first six months thanks to higher output and gold prices. Sales surged 49.2 per cent to 2.5 billion yuan on the back of an 11.8 per cent rise in gold output to 11.43 tonnes.