Celsius Holdings, Inc., the maker of zero-calorie fitness drink brand Celsius, this week announced a new $15 million round of funding led by current investor Hong Kong-based Horizons Ventures, a private investment arm of billionaire Li Ka-Shing. Gloria Tang Tsz-kei, a popular Chinese singer-songwriter known as G.E.M, and zVentures, the strategic investment arm of Razer, a leading lifestyle brand for gamers, were also investors in the round.

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