South Africa's fourth-largest lender by market value will offer the service to clients through its Global Markets team, which is housed in its Corporate and Investment Banking (CIB) unit. Carbon credits allow companies to purchase the right to emit a certain unit of carbon from regulators, while carbon offsets allow them to purchase units from companies that have reduced their emissions. "As a company, we are building that capacity in our global markets team to be able to offer that product or service to our clients," said Msizi Khoza, head of ESG at Absa CIB, at a roundtable on sustainable finance hosted by the bank on Wednesday.