Also participating were Temasek, a Singapore-based investment company and current investors Cargill, the Municipal Employee Retirement System (MERS) of Michigan, Walden Riverwood Ventures, Aqua-Spark and Pangaea Ventures.

Joining the Calysta Board of Directors from Mitsui will be Hitoshi Kudo, General Manager, Animal Nutrition Dept., Nutriscience Division, Nutrition & Agriculture Business Unit. Joining from Temasek will be Suan Swee Tan, Managing Director, Investments Agribusiness and Biotech.

Calysta intends to use a majority of the proceeds of the Series D investment to advance commercial scale manufacturing of Calysta's FeedKind protein, a family of sustainable, traceable nutritional ingredients for fish, livestock and pets.

"We are very pleased to welcome Mitsui and Temasek to Calysta's strategic family of investors, supporting committed investing in products that will make a global impact," said Tom Baruch, Executive Chairman of the Board. "Calysta's FeedKind protein, expected to enter commercial production in 2019, can help address the world's growing demand for new sustainable sources of protein and greater food security."

"We look forward to working with Mitsui as a strategic partner in marketing and distribution of FeedKind in important new markets (Asia) and in the expansion of FeedKind production," Mr. Baruch added. "We also welcome the opportunity to establish a significant collaboration in Singapore with Temasek, a leader in supporting innovative technology development."

In November 2016, Calysta and Cargill, along with several third-party investors, announced plans to invest in the creation of the world's largest gas fermentation facility in Memphis, TN, to produce FeedKind protein. The facility is expected to come online in 2019, producing up to 20,000 metric tons per year of FeedKind protein initially and expanding to up to 200,000 metric tons per year when operating at full capacity. Calysta also operates a Market Introduction Facility in the United Kingdom supplying sample quantities of FeedKind protein for customers.

About Calysta

Calysta, Menlo Park, CA, is an innovator in sustainable products to improve worldwide food security. Calysta develops and commercializes FeedKind protein, an alternative feed ingredient for fish, livestock and pet nutritional products.

About Mitsui

Mitsui & Co., Ltd., is a diversified global trading, investment, and service enterprise headquartered in Tokyo, Japan. Mitsui & Co. pursues "360 degree business innovation" that ranges from product sales, worldwide logistics and financing, through to the development of major international infrastructure and other projects. It maintains a global network of 137 offices in 65 countries/regions, and has 462 group companies and associated companies worldwide.

About Temasek

Temasek is an investment company based in Singapore. Temasek was incorporated in 1974 and is supported by 11 offices globally. Temasek's investment themes centre on: Transforming Economies; Growing Middle Income Populations; Deepening Comparative Advantages; and Emerging Champions. Its portfolio covers a broad spectrum of industries: telecommunications, media & technology; financial services; transportation & industrials; consumer & real estate; life sciences & agriculture; as well as energy & resources.