He is a go-getter for sure and a formidable person with a willingness to take short cut and unethical approaches.  I.e. using cheaper ingredients when he already had agreement with chatime to use theirs and steal the existing chatime shops to his tealive brand.

I think loo already made the first move by undercutting chatime supplier and not paying his master franchise agreement. That is the first true move. Given his cunning, i bet he already planned to execute this move from the start.

Chatime was never really a franchise. He only allowed close business partners, friends and relatives to invest. The rest, he open himself, with help of his rich father.

Sure, he can survive now that he has a monopoly. Time will only tell whether business close down or expands. Me personally, I think it will eventually close down. I cant see how selling oversaturated bubble tea can operate in so many shops and locations. The high labour cost, shop rental and logistics involved will just kill tealive. How does one maintain their quality and standards? It's just not sustainable.

where to buy this?

Chatime tw brought it to supermarkets. No contract is broken.

I doubt Loo has full control on all chatime products that can be sold or not. He only bubble-tea shop franchise holder. He doesnt hold any exclusivity for all products.

So again, Loo is the one who made the first move to cut the franchise.