Adding U.S.-listed Chinese companies to MSCI's Emerging Markets (EM) index is not a gateway for the long-anticipated A-share inclusion, according to the global index provider.

"This decision is absolutely independent from any consideration of adding A-shares to the EM index. It's a much broader move," Sebastien Lieblich, MSCI's global head of index management research, told CNBC on Friday. "It just happens that China is strongly impacted by this enhancement in methodology, but there are also other countries [involved]."