BABA [Alibaba] SC 13G/A: CUSIP No. 01609W102 13G Page 10 of 11
[CUSIP No. 01609W102 13G Page 10 of 11 pages JOINT FILING AGREEMENT 13d-1(k) SoftBank Group Corp., a Japanese corporation, SBBM Corporation, a Japanese corporation, and West Raptor Holdings, LLC, a Delaware limited liability company, each hereby agrees, in accordance with Rule Dated: February 14, 201]