JD.com is making a renewed push into its online supermarket business with a subsidy programme worth more than 20 billion yuan (US$2.9 billion) over three years, a move aimed at defending its position in China’s e-commerce and on-demand grocery sectors. In a statement on Thursday, JD.com said the subsidy would cover products on a dedicated channel called “Billion-Yuan Supermarket”, under its JD Supermarket service. The aim was to help vendors generate an additional 200 billion yuan in sales over...