Key Employee and Affiliate Biographies
Steve Pearmain, Managing Director
BSc, MSc, MIEnvSc, CEnv
Steve is a Chartered Environmentalist and recognised environmental specialist with over seventeen years experience providing a diverse range of environmental services across a broad range of sectors and international jurisdictions. He has been instrumental to the successful delivery of numerous challenging & high profile environmental projects; including the sustainable regeneration of the London 2012 Olympic Park site. During his tenure as Head of Land Quality at Atkins Global Steve was responsible for a business unit with a yearly revenue stream of c.$10million and the Line Management of 58 technical staff across a range of disciplines and grades.
Steve established SLP Environmental in Bangkok in January 2008 with the objective of providing the SE Asian marketplace with premium quality environmental consultancy services. He is a firm proponent of technical excellence and environmentally responsible development, and his mission is to provide innovative, cost effective and sustainable environmental solutions that both deliver his clients objectives and benefit the natural environment and local communities. Steve has worked in three continents and combines internationally acquired expertise and experience with an in-depth understanding of SE Asia’s environmental policies, regulatory frameworks and cultural sensitivities. Steve has authored numerous environmental articles and presented at conferences and seminars on the subject internationally.
Liz Pearmain, Director
BSc, MSc, MIEnvSc, CSci, CEnv
Liz is a Chartered Environmentalist and Chartered Scientist with over ten years experience in the environmental consultancy sector. Liz is a fully qualified land quality assessment expert who has a BSc in Geology and an MSc in Environmental Science, both obtained from The University of Manchester, United Kingdom. Prior to joining SLP Environmental, Liz worked in London, for a number of well known Environmental Consultancies (White Young Green, ENVIRON and Waterman Environmental) where she managed varous major and high profile regeneration projects. Her key specialisms include environmental due diligence, site characterisation, waste minimisation, QRA modelling and major scheme Project Management.
During her career Liz has provided environmental due diligence liability assessments for mergers, acquisitions and divestitures for a wide range of corporate, property and financial sector clients. Liz also has extensive experience in managing and delivering major multi-disciplinary urban regeneration and environmental improvement schemes.
While working for SLP Environmental, Liz has project managed and directed numerous Environmental projects covering a variety of specialisms for clients in locations throughout South East Asia.

Gavin Bollan Affiliate, Air Quality and Sustainability Specialist
BSc MIEnvSc MIAQM
Gavin is an air quality and environmental sustainability specialist having worked in the environment industry since the early 1990s as a chemist and a scientific consultant. In the capacities of industrial chemist, emissions technician, occupational hygienist and monitoring adviser, he has operated, prepared guidance for, designed, maintained, and repaired a huge array of air and water quality sampling and analytical equipment.
Since moving to a project management role, he has undertaken and overseen a diverse range and scale of projects, from securing a pollution control permit for the UK’s smallest metals refinery to overseeing the air quality chapters of the UK’s largest development planning application; making use of a wide suite of technical assessment and quantitative modelling tools.
Gavin has developed capabilities in carbon quantification over the last seven years and developed the technical framework for carbon trading in European Union member states. During his career he has initiated and led the development of numerous carbon footprinting devices. Gavin is currently Head of Business for Air & Sustainability with Atkins and an approved SLP specialist affiliate, leading a team of 20 air quality, carbon and multi-aspect sustainability appraisers.
Yanticha NamphetEnvironmental Consultant
BSc (Hons)
Yanticha is an Environmental Consultant and a trained Environmental Geologist who graduated from the prestigious Chulalongkorn University, Bangkok, Thailand where she studied under Assist. Prof. Dr. Chakkrapan Sutthirat, a famous igneous rock specialist in Thailand and also Deputy Director of the Environmental Research Institute, Thailand. Her senior year project was ‘Petrochemistry of felsic xenoliths in corundum-related basalt, Amphoe Bo Phloi, Changwat Kanchanaburi’. She was also a Research Assistant under the Code of Practice for Renewable Energy at the Environmental Research Institute, Chulalongkorn University.
While at University, Yanticha completed two internships, one with the Siam Cement Group working at a limestone quarry in Nakhon Si Thammarat Province and the other at a kaolinite quarry in Ranong Province while working for the Mineral Resources Development Company. During her time at these companies she gained particular experience in geological mapping, geotechnical engineering and geochemical laboratory techniques and became a specialist in technical computer modelling software.
Yanticha is proficient in site inspections and site auditing, data collection and processing, sample collection, soil logging and groundwater sampling as well as data analysis and reporting. She is familiar with Phase 1 and Phase 2 Environmental Site Assessments and has undertaken numerous environmental projects throughout Thailand.