The United Arab Emirates planned to use its role as the host of the biggest and most important annual climate conference as a platform to lobby foreign government officials for oil and gas deals, according to a cache of internal documents obtained by a not-for-profit investigative journalism organization.

The leaked records show that Sultan Al-Jaber, who controversially serves as both COP28 president designate and chief executive of state oil giant ADNOC (the Abu Dhabi National Oil Company), planned to discuss fossil fuel deals with 15 countries during the forthcoming climate conference. Al-Jaber was the founding CEO of Abu Dhabi state-owned renewable energy firm Masdar.

A spokesperson for the UAE’s COP28 team and ADNOC were not immediately available for comment when contacted by CNBC. Abu Dhabi-based renewables giant Masdar declined to comment.

The UAE team did not deny using COP28 meetings for business purposes, the BBC reported Monday, citing a spokesperson as saying that “private meetings are private.”