CDC Corp. (Nasdaq: CHINA) subsidiary China.com (8006.HK) announced on November 7 that it has signed an advertising contract with Shanghai-based online game company Giant Interactive (NYSE: GA). Under the agreement, China.com will run an ad campaign for Giant Interactive on its game channel game.china.com. Giant Interactive's in-house developed MMORPG Zhengtu Online scored 1.05 million peak concurrent users (PCU) on May 20.