Hong Kong stocks closed down 230.89 points, or 1.03 percent, at 22,109.95 points on Tuesday.
China's stock index futures closed down Tuesday with the contract for October, the most actively traded, down 0.56 percent from the previous trading day to end at 2,891.4 points.
The ChiNext Index, launched by the Shenzhen Stock Exchange (SSE) on June 1, dropped 0.91 percent, or 8.62 points, to close at 942.05 Tuesday.
Chinese equities closed lower Tuesday with the benchmark Shanghai Composite Index down 0.63 percent, or 16.61 points, to close at 2,611.35.
China Unicom, China's No 2 telecom carrier said on Tuesday it has sold $1.8 billion in convertible bonds.
China's stock index futures closed up Monday with the contract for October, the most actively traded, up 1.04 percent from the previous trading day to end at 2,904.0 points.
The ChiNext Index, launched by the Shenzhen Stock Exchange (SSE) on June 1, rose 1.73 percent, or 16.21 points, to close at 950.67 Monday.
Chinese equities closed higher Monday with the benchmark Shanghai Composite Index up 1.41 percent, or 36.42 points, to close at 2,627.97.
China Medical System Holdings Ltd raised about HK$1 billion ($129 million) in a Hong Kong initial public offering (IPO).
Joint bookrunners Goldman Sachs, Morgan Stanley and UBS have sold about $2 billion worth of their remaining positions in China Mobile Ltd after a $6.5 billion block sale failed to clear the market at the first attempt.
Brazil's mining giant Vale will list its shares on the Hong Kong Stock Exchange, the world's leading iron ore producer announced Thursday.
Hong Kong stocks edged up 25.25 points, or 0.11 percent, to close at 22,002.59 on Tuesday.