BABA [Alibaba] SC 13G/A: CUSIP No. 01609W102 13G Page 11 of 12
[CUSIP No. 01609W102 13G Page 11 of 12 pages JOINT FILING AGREEMENT 13d-1(k) SoftBank Group Corp., a Japanese corporation, SBBM Corporation, a Japanese corporation, SB HP Holdco, a Cayman Islands company, and West Raptor Holdings, LLC, a Delaware limited liability company, each hereby agrees, in acco]