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Quick answers
Did Chang Dong co-found erthos?
Yes. A University of Toronto Mississauga news story dated March 9, 2021 identifies "Erthos co-founders and U of T alumnae Kritika Tyagi, Chang Dong and Nuha Siddiqui," and says the company began as EcoPackers in 2016. Tatler Asia's April 5, 2022 profile likewise calls her "Erthos co-founder and CTO."
What was Chang Dong's role at erthos?
Tatler Asia reported on April 5, 2022 that "as chief technological officer, Dong develops the science behind the technology and is responsible for scaling it up," and that she moved from Canada to Shenzhen in 2019 to expand the company.
Is Chang Dong still at erthos?
Not as far as any public page shows. The company's own company page, checked on September 22, 2026, names "Nuha Siddiqui and Kritika Tyagi" as its founders and does not list Chang Dong among its team. No recent source states a current role for her, at erthos or elsewhere.
What is erthos?
A Toronto biomaterials company. U of T Mississauga described it on March 9, 2021 as offering resin-based alternatives to plastic inputs, having started as the compostable-packaging venture EcoPackers in 2016. Its own site, checked on September 22, 2026, now presents erthos Studio, an AI-assisted design service for bioresins, bioadditives and biocoatings, run from a Toronto headquarters.