The Sydney operations of Vietnamese street food group, MissChu, are up for sale after the business collapsed under $4 million in debts.

Just under 30 inquiries from potential buyers have already been received by administrators KordaMentha, who will advertise the sale from Tuesday.

Six MissChu branded tuckshops and a commercial kitchen, all in Sydney, are being offered in the sale.

Founder, Nahji Chu, a former refugee who founded the business in Sydney in 2007, has appealed to diners to support the business to keep it alive.

“Am I begging, am I pleading? Yes, a little bit,” she said in a post on Facebook.

“But in my heart this simply feels like a call to action. Go and eat MissChu food!

“Doing so literally ensures that this brand continues.”

She said MissChu’s Sydney and Melbourne stores continued to thrive but the business had come unstuck due to an ill-fated entry into the UK market.

“I didn’t grow too quickly. I grew in the wrong direction at the last minute,” she said.

Chu has also vowed to stay with the business under any new ownership.

“I will save it … I’m still here running the business and will forever more no matter who buys the company.”

AAP