Courier startup J&T Global Express, which mainly operates in Southeast Asia and China, will launch a Hong Kong initial public offering on Monday that will value it at about $13 billion, three people with direct knowledge of the matter said. The valuation is lower than the $20 billion J&T achieved in a 2021 funding round, but in line with the amount achieved during its most recent funding round in May, the sources said. J&T declined to comment.