The Stillaguamish Tribe of Indians has made an investment of $5m in the US-based company MicroGREEN.
According to MicroGREEN, the tribe's investment is part of a $20m funding effort and is set to enable the company to expand its commercial production capabilities to produce a range of cups and trays that are environmentally responsible.
The Stillaguamish Tribe will also use the cups produced by the company in their Angel of the Winds Casino and other businesses.
Stillaguamish Tribal Enterprise initially approached the company about buying its InCycle cup for use in its casino, but recognised how the products could be a strategic fit in its sustainability and economic diversification goals.
MicroGREEN Polymers president and chief executive officer Tom Malone said the company's technology allows it to use less plastic to produce products with good quality.
"The recycled content and recyclability of InCycle products, coupled with their lightweight nature means that we are creating some of the greenest packaging products available, while having the advantage of being a low-cost producer," Malone said.
Plastics company MicroGREEN uses Ad-air technology to create its own InCycle brand of insulating and temperature resistant cups, trays and other items that are made from expanded, recycled PET.
The technology minimises the raw material cost and cuts down the plastic product weight, while improving functionality.
MicroGREEN's commercial production facility in Arlington, Washington, has the design capacity to convert at least 20 million pounds of PET annually.