Astrazeneca plc is investing heavily in China, signing two R&D deals, worth up to about $8 billion in up-front payments and milestones combined, with Chinese companies Harbour Biomed Ltd. and Syneron Bio, establishing a joint venture with Shenzhen Kangtai Biological Products Co. (Biokangtai) for vaccines, and creating a new R&D center in Beijing through another $2.5 billion investment.