BX Plastics was a former Plastics engineering

Plastics engineering

Plastics engineering encompasses the processing, design, development, and manufacture of plastics products. A plastic is a polymeric material that is in a semi-liquid state, having the property of plasticity and exhibiting flow. The nature of plastic materials poses unique challenges to an engineer...

 and production company. The company was acquired by Xylonite in the 1980s. The company had a plant in Manningtree. They held several patents on plastic products and manufacturing processes in the 1960s.

Following her graduation in 1950, Margaret Thatcher

Margaret Thatcher

Margaret Hilda Thatcher, Baroness Thatcher, was Prime Minister of the United Kingdom from 1979 to 1990...

worked for a short time as a research chemist for BX Plastics.