Dr. Obulisamy Parthiba Karthikeyan (OPK) is a Director of EHS at Austin Elements Inc., Houston, Texas, USA. He has over 15 years of international research experience in the field of environmental microbiology and biotechnology. He had secured a sum of $500,000 of research/consultancy funding within the last 8 years from national/international agencies. He is nominated for the prestigious Presidential Chinese Academy of Science Awards 2021 from Institute of Subtropical Agriculture, Changsha, China. In the past, he had achieved few meritorious awards such as Australia-Thailand Early Career Research Exchange Award-2014, Sêr Cymru National Research Network for Low Carbon Energy and Environment Writing Fellowship and Award-2018 (UK), and Ramalingaswamy Re-Entry Fellowship-2018 (India). Dr. OPK is serving as a peer review member assessor for the United States Department of Agriculture (USDA)-USA, Agriculture and Agri-Food Canada, Canada, Horizon H2020-Marie Sklodowska-Curie Individual Fellowships-Europe, Australian Research Council-Australia, and the Research Foundation – Flanders (FWO)- Belgium. He is associated editor for the Frontiers of Microbiotechnology and guest edited few special issues for few publishers such as Elsevier, Springer and MDPI. He has published more than 75 research/review articles in Scopus indexed journals, 4 books, 12 chapters and 4 editorials. His research interests and knowledge spans on various research topics including microbial engineering, omics for process understanding, Greenhouse gas fermentation into value products, waste biorefinery, Bioreactor engineering and Bioleaching of metals.