Mitsubishi Chemical introduces BioPBS, a biobased, compostable polymer, making its debut in tea bag pouches by Kiri Kosho brand EN TEA; when discarded, BioPBS degrades into water and CO2 by natural microorganisms

Sample article from our Bioeconomy

September 20, 2023 (press release) –

Plant-derived biodegradable resin “BioPBS” has been adopted for the outer tea bag of the tea leaf brand “EN TEA”
2023/09/20 Business related

The Mitsubishi Chemical Group (hereinafter referred to as the "Company Group") has announced that its plant-based biodegradable resin "BioPBS™" is used in the sealant layer of the renewed pouches (outer bags) of Kiri Kosho Co., Ltd.'s tea leaf brand "EN TEA" tea bag products. I would like to inform you that I have been accepted by Chuck. This renewed product will go on sale from September 20, 2023.

EN TEA tea bag products
BioPBS™ is a plant-based biodegradable resin that is broken down into water and carbon dioxide by natural microorganisms. It has excellent low-temperature heat sealability and flexibility, and is increasingly being used as a packaging material for foods.
EN TEA is a tea leaf brand that produces, processes, and develops tea from carefully selected materials purchased from all over the country, based on the concept of "beautiful tea" that is in harmony with the people and things surrounding it. This renewed product uses biodegradable materials in the sealant layer and zipper of the outer bag, as well as the barrier layer, adhesive, and tea bag.
As a specialty materials group that provides innovative solutions, our group will continue to provide high value-added products through the development of BioPBS™ and contribute to the realization of a sustainable society.  

・<EN TEA> Brand renewal from Wednesday, September 20, 2023:
・"EN TEA" product site:

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