Photo Liu Chuanzhi, the chairman of Legend Holdings, which said on Friday that it had agreed to acquire a 90 percent stake in Banque Internationale à Luxembourg. Credit Bobby Yip/Reuters
LONDON — Legend Holdings, the Chinese company that owns the computer manufacturer Lenovo Group, said on Friday that it had agreed to buy a 90 percent stake in Banque Internationale à Luxembourg for 1.48 billion euros, or about $1.75 billion.