Net profit of SIIC Medical Science and Technology (Group) plunged 62.4 per cent to HK$87.52 million last year, despite operating earnings surging 47.1 per cent. The Growth Enterprise Market-listed Chinese medicine arm of red chip Shanghai Industrial Holdings said improved sales, contribution from new acquisitions and effective cost-control measures helped operating profit climb to HK$231.84 million. Meanwhile, medicine firm Hua Han Bio-Pharmaceutical Holdings said net profit in the six months to December rose 6.38 per cent year on year to HK$40.25 million. The Guizhou-based company reported turnover of HK$99.81 million - up 17.2 per cent. Earnings per share were 8.4 HK cents, against 8.1 HK cents previously. The final dividend is four HK cents per share.