You're based in London but grew up in Hong Kong. What do you think of the fashion scene here? "There is a lot of talent, but there's room to create more commercial prospects for local designers. Culturally, major European and American brands still dominate. Support for local businesses of any sort needs to come from local consumers."

A few years ago, you closed your label only to later resurrect it - what happened? "My business partners and I disagreed on some fundamental aspects of how the company should be run. I gained complete control of the business again a few years later, and it now runs exactly as I believe it should do - successfully, in a sustainable and responsible way."

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Tell us about your latest collection. "The collection is the first we have produced using the new business structure, which was reconfigured to reduce as much waste as possible during and post production. We do this by making the product recyclable and reusable, as well as offering a pre-order service to customers, so we only produce what we need.

"The first style from the collection is WEN - it is a unisex style that I designed to be worn in as many different environments as possible. It was inspired by my great uncle [Sun Yat-sen], who spent most of his life travelling the world being 'invisible' due to threats on his life. I'm only launching one style at a time, which allows the consumer to really consider their purchase.

I don't think sustainability is a 'trend'. It is a necessity. Industries have been building themselves up to overproduce and undersell, fast.

"As a creative, it is much more satisfying to take your time and consider all the details of what you are designing, with the aim of that product lasting. You can create an item that has value."

Sustainability is the buzzword these days. How can designers achieve it? "I don't think sustainability is a 'trend'. It is a necessity. Industries have been building themselves up to overproduce and undersell, fast. It's not just fashion that has done this. Take, for example, the food industry. What we know about fast food is that it is the same as fast fashion - something is compromised: quality, ethics, well-being. Everyone can be sustainable by educating themselves more and making better choices in how they consume anything from fashion and food to energy."

You are Sun Yat-sen's great niece. Is that a huge legacy to live up to? "I'm very grateful to know of an example of someone who believed in change for good. That's what I think his legacy is and I hope I do what I can to honour it."

There is a lot of pressure on designers in the industry today. How do you keep up? "The pressure to keep up with the pace is huge, that is why I have chosen not to. There are simply more important things in life."