The plan faced criticism from environmental groups for falling "far short" of what was needed, and for applying primarily to England, not Wales.
Since then, he has served as Givency's creative director for menswear, been awarded an OBE, designed staff uniforms for British Airways and branched out into womenswear.While racking up professional and charitable commitments, Boateng was raising two children.
Now adults, Oscar and Emilia Boateng accompanied their father to the Met Gala, dressed in the suits that made their surname one of the most famous in contemporary British tailoring.They are not, however, keen to follow their father into fashion design."I'm trying to slowly but surely seduce them into the fashion business," Boateng jokes.
"It is ultimately their decision to decide what they want from their life. If they find something they're passionate about in a way I have, I am happy."And what is next for his own passion? Boateng might have a brain brimming with concepts, but he has a clear vision of where he wants his brand to go next.
"The future is expansion," he says, "raising capital to really, really push the brand globally".
"I think it's the moment in time - and it's the right moment."This month, Hungary's competition authority imposed a 770,000 euro fine on Wizz Air for misleading communications, including for how it encouraged customers to purchase more expensive travel packages.
Wizz Air told BBC News it "questions the legality of the fine, disagrees with its reasoning and is taking legal action."Also in August, Wizz Air reported a 44% drop in first-quarter operating profit and cut its profit forecast for the year as a whole.
Fast fashion shoppers need to think about where cheap clothes comes from before they make purchases, former Prime Minister Theresa May has said as she warned that the topic of modern slavery had slipped down the political agenda.she said some companies were actively checking their supply chains to make sure slave labour had not been used and reflecting that "on their packaging".