Morgan Stanley’s chief executive of China will reportedly retire after nearly two decades with the American lender.

Wei Sun Christianson will retire from her role as China CEO and APAC co-CEO – roles she held since 2006 and 2011, respectively – according to a memo from the bank.

Christianson will remain as an advisory director at the bank while fellow APAC co-CEO Gokul Laroia will take over as the sole CEO for the region.

Christianson first joined Morgan Stanley in 1998 and, thereafter, took on senior roles at Credit Suisse and Citi before rejoining in 2006 as China CEO. Under her leadership, Morgan Stanley expanded its footprint in China across domestic securities and bonds underwriting, commercial banking, asset management, trust services, and yuan-denominated private equity investing.