Westpac Banking (ASX:WBC, NZE:WBC) said it has zero corporate lending and will no longer provide bond facilitation for institutional customers with at least 15% of their three-year rolling average revenue coming directly from thermal coal mining as of Sept. 30, in line with its sustainability customer requirements, according to a Tuesday Australian bourse filing.

The bank's sustainability strategy is focused on the climate transition, housing affordability, and regional prosperity.

The bank remained the largest financier to renewable projects in Australia between Oct. 1, 2024, and Sept. 30, according to IJGlobal and Westpac Research data. It reported a 37% increase in sustainable finance lending.

It seeks to partner with customers to implement green, transition, social, or sustainability activities by providing AU$55 billion in sustainable lending and AU$40 billion in sustainable bond facilitation activities by 2030.

The bank's New Zealand shares added 1% in recent Tuesday trade.