LONDON (Reuters) - Standard Chartered ( SCBFF ) on Friday pledged to cut the emissions linked to the bonds it sells for oil and gas companies and will press ahead with its net-zero strategy, in contrast with other lenders who are reassessing their climate plans.

The London-listed bank plans to reduce by 26.9% the polluting emissions associated with bond deals it arranges for oil and gas companies by 2030, it said as it announced an 18% annual profit jump and $1.5 billion share buyback.

Most large banks have targets for reducing emissions associated with their lending, but only a handful have set so-called facilitated emissions. Campaigners have long pushed banks to set them across polluting industries and Standard Chartered's ( SCBFF ) new target is only for oil and gas.

Standard Chartered ( SCBFF ) CEO Bill Winters told analysts the bank remained committed to reaching net-zero by mid-century and that clients were not slowing efforts to decarbonise.

"Why are we so successful in the space? Because we focused on it, because our clients need us," he said, adding that the strategy was very profitable for the bank.

"Our clients are (in) transition to net zero. That's unabated despite some of the challenges."

The bank's sustainable finance business brought in almost $1 billion in income last year, Winters said.

Efforts to foster climate action in the financial industry have been shaken recently, including HSBC's ( HSBC ) announcement this week that it was delaying its net-zero emissions target by 20 years to 2050, the same as Standard Chartered ( SCBFF ).

HSBC ( HSBC ) said it would review its financed emissions targets and policies as part of a broader overhaul of its climate strategy in 2025.

Standard Chartered ( SCBFF ), which focuses on developing countries, will continue to help fossil fuel producers to raise funding but has also published its first transition plan, detailing progress to net zero and how it will help clients to do the same.