While still in its infancy, Kenya’s emerging purple tea production has the potential to create a new market, with projections that new tea varieties will generate up to $60 million over the next 3-5 years and comprise up to 5 percent of Kenya’s vitally important tea export market.

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http://www.worldbank.org/en/news/feature/2017/08/29/creating-kenyas-purple-tea-market---markets-and-competition-policy-in-action