Tan Sri Dato' Lim Kuang Sia (“Tan Sri Dato' KS Lim”), a Malaysian aged 65, was appointed the Managing Director and Chief Executive Officer of Kossan on 22 February 2002. Tan Sri Dato', a founder Director of Kossan, graduated with a Bachelor of Science (Chemistry) degree from Nanyang University in Singapore, a post-graduate Diploma in Chemical Engineering from University College, University of London and a Master in Chemical Engineering from Imperial College, University of London.
Besides Kossan, Tan Sri Dato' is the founder and a Trustee in Yayasan Kossan, a public company. Tan Sri Dato' also sits on the boards of several private companies and institutions.
Tan Sri Dato' is the President of Klang Chinese Chamber of Commerce and Industry (KCCCI), President of Associated Chinese Chambers of Commerce of Industry of Coastal Selangor, Deputy President of Malaysia Teochew Chamber of Commerce (MTCC), Treasurer of The Associated Chinese Chambers of Commerce and Industry of Malaysia (ACCCIM), Honorary Life President of the Teochew Association Klang and Coast, Honorary Advisor to the Lim Association Klang and Coast. Tan Sri Dato' is also the Deputy Chairman of Pin Hwa High School, Vice Chairman of Kwang Hua Private High School, a member of the Board of Directors of Hin Hua High School and the Chairman of Pulau Ketam Art Association.
On 11.11.2016, Tan Sri Dato' was bestowed the Sin Chew Business Excellence Awards for being the Business Excellence Person of the Year 2016.