Sunil Chandran is a veteran industrial biotechnology leader and the Chief Technology Officer at Amyris. Prior to Amyris, Dr. Chandran was the Chief Science Officer at Impossible Foods, a leading company in the plant-based meat alternative space. Prior to Impossible, Dr. Chandran was the Chief Science Officer and Head of R&D at Amyris Inc., where he spent more than 17 years bringing new fermentation-derived ingredients to market. At Amyris, he oversaw multiple research programs focused on commercializing various molecules and was the primary architect of the world-class Automated Strain Engineering (ASE) platform.

Prior to joining Amyris, Dr. Chandran was a scientist at Kosan Biosciences, where he studied the ability of polyketide synthases to make novel pharmaceutical drug candidates. Dr. Chandran has more than 20 published scientific papers, book chapters and patents. He holds a BS in chemistry from the University of Mumbai, an MS in chemistry from the Indian Institute of Technology, Mumbai, and a Ph.D. in chemistry from Michigan State University. Dr. Chandran also completed a post-doctoral fellowship in chemistry and biochemistry at the University of Wisconsin-Madison.

Doris Choi joined Amyris in December 2020 as Vice President, Senior Corporate Counsel and was appointed General Counsel and Secretary in December 2022. Prior to that, Ms. Choi served as Senior Corporate Counsel at Jazz Pharmaceuticals, a Nasdaq-listed global biopharmaceutical company. Before that, she served as Associate General Counsel and Assistant Secretary at QuinStreet, a Nasdaq-listed performance marketing technology company.

Ms. Choi started her career in private practice as an associate at Latham & Watkins LLP focused on corporate and finance transactions. Ms. Choi holds a B.A. from Northwestern University, an M.A. from University of Chicago and a J.D. from Columbia University.

Patricia East joined Amyris in March 2018, and was appointed Senior Vice President, Human Resources in March 2024. Ms. East is a seasoned global Human Resources leader with over two decades of experience in talent management, organizational development, business partnership, and leadership development. Prior to Amyris, Ms. East held HR leadership roles in private and publicly traded companies across various industries in the US and Brazil, including Glu Mobile, Barracuda Networks, and Blue Tree Hotels.

Ms. East is a certified Evidence-Based Coach and holds a degree in Psychology, postgraduate degree in Business Administration, and Master's in Organizational Development and Leadership.

Brian Edquist brings over 20 years of experience in the Life Sciences to Amyris, with a career spanning biotech, biopharma, and medical device innovation. As Senior Vice President of Portfolio Management & Computing, Mr. Edquist leads our PMO driving new product development and strategic projects, as well as our Computing team which encompasses software engineering, data science, IT, and our financial applications.

Before joining Amyris, Mr. Edquist served as Vice President of Development Operations at ESCAPE Bio, where he oversaw CMC and product development focused on rare neurodegenerative diseases. Prior to that, he was Vice President of Strategy and Project Management at Chrono Therapeutics, driving forward development of addiction treatment that integrated digital therapeutics with novel wearable drug delivery systems. He also held various engineering and leadership roles at the Medicines Company, Boston Scientific, MedImmune, and St. Jude Medical. Mr. Edquist holds a Bachelor of Science in Biology and Portuguese from the University of Wisconsin–Madison and an MBA from the Carlson School of Management.

Claudia Nohara is a seasoned finance executive with over 25 years of experience leading business transformation, mergers and acquisitions, strategic initiatives, and risk management across diverse industries including pharmaceuticals, medical devices, airlines, consumer goods, and mining.

Ms. Nohara has held senior positions at Eurofarma, Johnson & Johnson, and LATAM, and her leadership roles include serving on administrative and consulting boards in both pharmaceutical and multinational food industry. She holds a degree in Business Administration and advanced qualifications from FGV–EAESP.

Lisa Roessler was appointed Chief Commercial Officer in May 2024. Ms. Roessler has over 35 years of experience in global leadership roles overseeing commercial growth strategies and building winning global teams. She most recently served as Global Vice President, Product Line Agro and Functional Specialties, of Evonik, an international special chemicals company. Prior to Evonik, Ms. Roessler served for nearly 30 years at DuPont in sales and marketing roles of increasing responsibility, including as Global Growth Leader of a $3 billion business. She received her Master’s in chemical engineering from Carnegie Mellon University and her Bachelor’s in chemical engineering from the University of Pittsburgh.

Annie Tsong oversees product development and product innovation strategy, guiding the creation of high-impact ingredients that align with market needs and Amyris’ technology strengths. She also leads corporate affairs, where she drives strategic communications and stakeholder engagement.

Dr. Tsong joined Amyris in 2008 in R&D, where she was central in establishing the company’s foundational microbial production platform. She is an inventor on numerous foundational patents in Amyris’ IP portfolio, as well as the primary author on seminal research papers in the fields of metabolic engineering and transcriptional network evolution. Dr. Tsong holds an AB in Biochemical Sciences from Harvard University, a Ph.D. in genetics from University of California, San Francisco, and was a Miller Fellow at University of California, Berkeley.

In 2022, she was awarded the prestigious Rosalind Franklin Award by the Biotechnology Innovation Organization (BIO), which recognizes a leader in Biotechnology who is driving current advancements in food systems, agriculture, sustainable energy, and bio-based manufacturing.