NTR is the parent company of Greenstar and its 6 sister companies

Greenstar has broad, strong backing by NTR, the international renewable energy group, that builds and runs green energy and resource sustaining businesses across North America.

NTR has a successful parent company business model with more than 30 years of experience and 2,000 global employees

NTR combines entrepreneurial drive with its heritage in infrastructure development to address three of the world's paramount issues: climate change, resource sustainability and security of energy supply

NTR is the largest recycler in Ireland with trading relationships around the world

NTR plc was established in 1978 and has progressed significantly from being a pioneer of toll road infrastructure projects in Ireland to becoming a leading developer and operator in renewable energy and sustainable waste management. NTR'S objective is to create a significant International Group focused on its core market sectors—Recycling-led Waste Management, Solar Energy, Wind Energy and Corn-based Ethanol—within an overall strategy of being A Leading International Developer and Operator in Renewable Energy and Sustainable Waste Management.

Headquartered in Dublin, Ireland, NTR's businesses extend across Ireland and North America.

Greenstar Ireland is Ireland's leading provider of environmental, waste management and recycling solutions to over 60,000 households and 25,000 business premises. Greenstar handles approximately one million tons of waste and recyclables per year.

Green Plains Renewable Energy is a vertically-integrated, low-cost ethanol producer and an emerging leader within the biofuels industry. Green Plains markets over 840 million gallons of corn-based ethanol per year, making it the fourth largest producer of fuel grade ethanol in North America.

Stirling Energy Systems, Inc. (SES) is a pioneer in the design and development of Concentrated Solar Power solutions. The company's unique technology, the SunCatcher, combines a mirrored concentrator dish with a high-efficiency Stirling engine, specially designed to convert sunlight to electricity.

Tessera Solar International is an independent power company that brings the benefits of the unique sterling engine powered SunCatcher concentrating solar system, developed by sister company SES, to solar markets around the world.

Tessera Solar North America is an independent power company that brings the benefits of the unique Stirling engine powered SunCatcher concentrating solar system, developed by its sister company, SES, to States across North America.

Wind Capital Group is quickly becoming a leading wind developer in the United States. Wind Capital has developed and constructed the only four operational wind farms in the State of Missouri, totaling 162 megawatts (MW).