China’s biggest companies are starting to make a habit out of giving away their earnings.

In the latest example, Pinduoduo Inc., an e-commerce company known for giving big discounts to customers when they buy produce together, has said it will donate all of its first net profit since going public to support the country’s farmers and agricultural areas.

The company plans to keep giving away earnings at least until the donations reach 10 billion yuan ($1.5 billion).