What you’re looking for is rather Frontier Markets ETFs, or ex-China EM ETFs.
There aren’t any good ETF options available in UK to my knowledge, I personally invest in the Redwheel Next Generation Emerging Markets Equity Fund on ajBell - (which is a frontier fund) - there is a greater justification to go with an actively managed fund when dealing with illiquid shares.
But please, InvestEngine, please introduce EMXG.
ETF Suggestion: Emerging Market Ex-China Fund - General discussion - InvestEngine