The USD 250-million-loan will fund a project to connect 216,750 households in approximately 510 villages to the natural gas distribution network, the bank said.
The project is expected to reduce annual carbon dioxide emissions by 595,700 tonnes, particulate matter by 3,700 tonnes, sulfur dioxide by 1,488 tonnes and nitrogen oxide by 4,442 tonnes, it said in a statement.
With an authorised capital of USD 100 billion, China is the largest shareholder with 26.06 per cent voting shares. India is the second largest shareholder with 7.5 per cent followed by Russia 5.93 per cent and Germany 4.5 per cent.
"That is why we are investing in a project aligned with their ambitious plan," Jin said.
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He reaffirmed AIIB's "unwavering commitment" to helping members meet their environmental and development goals, especially their commitments under the Paris Agreement.
"It is only fitting that our first investment in China will introduce sustainable infrastructure that will reduce greenhouse gas emissions and help invigorate one of the most important economic hubs in Asia," Jin said.
The investment in the project also marks AIIB's first corporate loan.