About
History
A subsidiary of Packaging Matters, LLC
1948
Founding of Penny Plate Inc.
1986
Therma Plate was founded and emerged as the primary producer of CPET Plastic Trays. The company is now part of Bemis Corporation.
1993
Associated Packaging Technologies was founded and successfully developed the technology to resolve the cracking issues of CPET trays. The company now part of Sonoco Products Company.
2002
Peninsula Packaging was founded for the Agriculture Industry and formed recyclable berry containers using solar energy. The company is now part of Sonoco Products Company.
2015
PolymerPak was founded.
2020
Penny Plate, LLC. becomes a subsidiary of Packaging Matters, LLC.
2023
Penny Plate’s sister company, Gateway Aluminum, LLC is now operating an Aluminum Rolling Mill in St Louis Missouri and has been Melting and Casting Aluminum since the start of 2023.
Markets

Food Processors
Food industry giants buy various Penny Plate products to cook or bake prepared meals. Food Processors use Penny Plate containers to make anything from muffins, to casseroles, to lasagna. Then the Food Processors either repackage the item for retail sale, or the cooked food remains in a Penny Plate pan and is sold in the frozen food section of the grocery store

Food Service Distribution
Food service distribution re-sells products to restaurants, bakeries, small grocers, and other distributors, giving smaller businesses access to Penny Plate products. Distributors’ large volume Penny Plate orders are resold along with other company’s products on weekly routes to smaller businesses.

Retail
Grocery and warehouse stores buy Penny Plate products for either the prepared food section of their stores or to sell in small case packs for consumers. Penny Plate containers can be found anywhere from the in-store bakery to the bakeware aisle in major retail stores across the nation.
Pan Definitions
