Zero to 100 million in only a few years: We take a look at South Africa’s start-ups that have grown from fledglings to million rand businesses. The Business of Iced Tea Vital Stats Player: Grant Rushmere Brand: Bos Brands Established: 2009 Visit: www.bosicetea.com When Grant Rushmere first envisioned Bos Ice Tea, he did it through the lens of creating a global brand. This wasn’t going to be a small local brand that would grow organically, and maybe enter international markets in the distant future. No. This was a brand engineered for stratospheric growth, which required a ballsy optimism…