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Bruce Loxley (GSK)

Bruce performs regional and global auditing of GSK Vaccines and third-party provider sites and functions focusing on the Asia Pacific. Bruce has 29 years in the Pharma and Vaccines businesses, a variety of roles in Validation and Compliance in both Drug Substance and Drug Product Manufacturing in the UK, France, and Singapore.


Bruce has been a PDA Singapore Chapter member since 2014. Since February 2020 he has been PDA Singapore Chapter President.

Dr. Emily Cheah (Charles River Laboratories)

A registered pharmacist, Dr. Emily Cheah is currently the Managing Director of Charles River Laboratories Singapore (Microbial Solutions). Emily oversees strategic technical operations and market development in Singapore, Malaysia, and Indonesia; and is involved in the implementation of new technology/services at the Singapore site. She also conducts numerous training for the Industry. She received her Ph.D. (Pharm. Technology) from the National University of Singapore and is currently pursuing her EMBA.


Emily is President-Elect of the PDA Singapore Chapter and is an active volunteer with the Chapter since its inception in 2014.

Dr. Andiyanto Sutandar (NNIT)

Dr. Andiyanto Sutandar is a Manager in the NNIT Group Life Sciences Divisions of HGP Asia Pte Ltd, Singapore and manages the operations of PT Halfmann Goetsch Partner, Indonesia. Andi leads HGP's Manufacturing Science and Technology service unit.  Andi has broad and in-depth experience in technology transfer, risk management, qualification and supply chain management in pharmaceutical industry. Additionally, Andi has expertise in design and risk management of high containment facilities.

Andi has been a volunteer with PDA Singapore Chapter since 2015 and is currently serving as the Secretary of PDA Singapore Chapter board.

Ratna Solsialin (Kalbio Global Medika)

Ratna Sosialin holds a professional carrier as the Responsible Pharmacist for Quality at various Pharmaceutical Multinational Companies. She started with Pfizer Indonesia in 1991, Roche Indonesia and Bayer Indonesia before moving to a National Company i.e Kalbe Farma in one of the pharma sites, Dankos Farma.

Ratna Sosialin is currently the Quality Head of PT. Kalbio Global Medika, a Kalbe company that manufactures bio-tech products both Drug Substances and Drug Products.

Ratna Sosialin was active in a professional organization, namely QA/QC Managers Group for being part of the committee and chairperson for a period. She is also part of the Indonesian GMP experts.

Dr. Georg Roessling (PDA)

Georg Roessling has been a consultant since 2017. From 2006-2017 he held the position of Sr. Vice President of PDA Europe, where he started the office in Europe and developed a number of conferences and training courses together with regulatory agencies, pharmaceutical industry and suppliers. Before that he worked from 1984-2005 with Schering AG in various positions. These roles included head of pharmaceutical devlopment of parenterals and head of Global CMC Technology office.

Georg is a chemist by training, has a PhD in Physical chemistry from the university of Karlsruhe and was a post-doc in Chemical Engineering in Berkeley, USA. He has been a PDA member for almost 30 years and he received the PDA Honorary Membership.