He has served as State Deputy Minister of Public Health and Housing of Sarawak in the GPS state administration under Chief Minister Abang Abdul Rahman Johari Abang Openg and Minister Sim Kui Hian since January 2022.
He served as State Deputy Minister of Local Government of Sarawak in the Barisan Nasional (BN) and GPS state administrations under Chief Ministers Adenan Satem and Abang Johari and Minister Sim from May 2016 to December 2021 and Member of the Sarawak State Legislative Assembly (MLA) for Marudi since May 2016.
Penguang obtained a Bachelor of Science (BSc) in Forestry (Hons.)
He then furthered his studies to the University of Edinburgh in Scotland and obtained a Master of Science (MSc) in Resource Management in 1989.
Finally, he attended the Irish International University (IIU) between 1998 and 2001 and obtained a Doctorate (PhD) in sustainable forest management.