China may publish the names of banks and companies which did not perform well in regards to green credit and environmental protection.
Hong Kong stocks plunged 634.48 points, or 3.19 percent, to close at 19,259.83 on Wednesday, tracking losses in the global markets.
Yuan position for purchasing foreign exchange showed its first monthly decline in April this year, sparking concerns over the negative effect.
The Hong Kong Monetary Authority and the Hong Kong Trade Development Council organized a seminar on promoting offshore Renminbi business in Tokyo on Tuesday.
China's stock index futures closed lower Wednesday, with the contract for May, the most actively traded, down 1.66 percent from the previous trading day to 2,563.2 points.
Chinese shares closed lower Wednesday, with the benchmark Shanghai Composite Index down 1.21 percent to 2,346.19.
The ChiNext Index, tracking China's Nasdaq-style board of growth enterprises, fell 10.16 points, or 1.41 percent, to close at 709.96 points on Wednesday.
Hong Kong was willing to promote and expand offshore renminbi business with other financial centers in the world, said the chief executive of the HKMA.
China's four biggest banks made almost no new loans in the first two weeks of May, extending the sleepy credit growth in April, banking sources said.
Blackstone Group LP and TPG Capital are among global firms losing their position as preferred investors in China, the world's second-biggest private-equity market.
China's stock index futures opened lower on Wednesday, with the contract for settlement in May, the most actively traded, down 6.4 points, to open at 2,600.
The National Council for Social Security Fund will invest up to 250 billion yuan ($39.6 billion) in the real economy by 2015.