The Bruno Manser Fund’s report details the business activities of Mr Mahmud in the Malaysian state and personal wealth of 20 family members.

The NGO claims the wealth has been amssased the complete political and economic control of Sarawak, in particualr through monopolies on the granting of timber and plantation concessions and the export of timber.

The report says the minister’s wealth is an estimated US$15bn, while his brother Onn Mahmud’s control over all the state’s log exports gave him an estimated net worth of US$2bn.

The minister’s first cousin Hamed Sepawi, founder of timber company Ta Ann, is rated at US$175m.