China Nepstar Chain Drugstore [[NPD]] added nearly 10% per share, or some $66 million in market capitalization, Monday. The Shenzhen, China-based retail drugstore chain announced disappointing second quarter results. EPS were only $0.02 compared to analysts’ expectations of $0.04 and revenue was only $78 million compared to expectations of $86. Worse, same-store sales, a key indicator for retailers, dropped 1.3% from the same period a year earlier.

The key development driving today’s gains was China Nepstar’s announcement that it will play a one-time cash dividend of $1.50 per American Depositary Share to shareholders of record as of September 25.

China Nepstar Chain Drugstore Ltd. [[NPD]] announces second quarter earnings at 8:30 am EDT on Monday. The Shenzhen-based retail drugstore chain that also offers its own private label products is expected to announce EPS of $0.04 on revenue of $86.16 million. If on-target, EPS will drop 50% year-over-year on a sales increase of 1%.

China Petroleum & Chemical Corp. [[SNP]], better known as Sinopec, announces interim 2009 results at 3:30 am EDT. The Beijing-based oil and gas company does not have analyst estimates of its results.