Mainland Chinese shares recovered early losses amid volatile swings, following Monday's suspension of trading, which led to a global equities sell-off. The Shanghai Composite was down 0.4 per cent at 3,321.87 after opening more than 3 per cent lower, while the Hang Seng also changed direction to head up 0.1 per cent to 21,342.09. Trading in Shanghai was suspended early on Monday after it triggered a new circuit breaker mechanism. But regulators said today that it may restrict stock sales to stem falls.