Have you checked for proof, or are you assuming.
There have been 19 Type 054A frigates launched with 15 in service with the PLAN. They are:
PLAN Type 054A Frigates by Pennant Number
FFG 529 Zhoushan,2006-1221, HP
FFG 530 Xuzhou, 2006-0930, HD
FFG 538 Yantai, 2010-0824, HP
FFG 546 Yancheng...