US can cooperate with the bank as it welcomes and supports proposals that are helpful to infrastructure construction, US Treasury Secretary Jacob Lew said.
Lew is here for talks with Chinese officials.
The cooperation can be carried out through the China-US Strategic and Economic Dialogue (SED), the World Bank and the AIIB, and any other mechanisms accepted by the two countries, Lew said in his talks with Chinese Premier Li Keqiang earlier on, Chinese Vice Minister of Finance Zhu Guangyao quoted him as saying.
Already India, along with 30 countries including staunch US allies UK, Germany and France have joined the bank making the Barack Obama administration rethink its concerns that it could become a competitor to the US-led World Bank, IMF and ADB, as it is set to start with USD 50 billion investment.
Zhu told state-run Xinhua news agency after the hour-long talks that Lew also welcomes China playing a bigger role in international economic affairs.