(Bloomberg) -- China stocks rallied, after the central bank’s decision to inject cash into the financial system alleviated concerns that officials would hold back on stimulus.

The CSI 300 Index jumped 2.8 percent in Shanghai on Tuesday, its biggest gain in more than two weeks. The Shanghai Composite Index added 2.4 percent, while the Hang Seng China Enterprises Index was on the brink of entering a bull market. Banks surged after the People’s Bank of China added funds to the money market after an 18-day dry spell.

Stocks sold off Monday as traders pared back their bets of additional stimulus, following data last week that showed the economy is improving. The resumption of cash injections by the People’s Bank of China is seen as a positive signal, said Castor Pang, research head at Core Pacific-Yamachi International.

"The central bank’s resumption of net injections today alleviated earlier concerns of tightening liquidity," said Ken Chen, a Shanghai-based analyst with KGI Securities Co. "Positive expectations on March economic numbers due tomorrow are also supporting the blue chips, which are more sensitive to changes in fundamentals."

The Bank of Guiyang Co. rose by the 10 percent limit and Industrial Bank Co. added 7.5 percent. China Construction Bank Corp. rose 4.9 percent in Shanghai.

Telecom stocks were also among the biggest gainers Tuesday amid signs China is getting serious about developing its next-generation networks. A gauge tracking the industry group surged 6.9 percent, following news that state-owned firms increased their 5G investments by nearly 40 percent in the first quarter. ZTE Corp rose by its daily limit onshore, while FIH Mobile Ltd. jumped 14 percent in Hong Kong.

To contact Bloomberg News staff for this story: Jeanny Yu in Hong Kong at jyu107@bloomberg.net;Amanda Wang in Shanghai at twang234@bloomberg.net

To contact the editors responsible for this story: Richard Frost at rfrost4@bloomberg.net, David Watkins, Sofia Horta e Costa

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