Beijing — Less than two months after stepping down as prime minister, Jean Chretien is moving quickly to forge a relationship with China's wealthiest and most powerful business conglomerate. Making a surprisingly speedy entrance onto the global business stage, Mr. Chretien will arrive in China this weekend with a team of Power Corp. executives to meet some of China's most influential business leaders. The visit, his first major overseas trip since his retirement, is being kept hush-hush. Neither the Canadian embassy in Beijing nor his law office in Ottawa is revealing any details of the visit, insisting that it is...