That means increasing domestic demand, and that means getting domestic financial systems right," Yetsenga told CNBC on Thursday.
The Chinese flag floats before the skyscrapers of multinational corporations on February 23, 2018 in Shanghai, China.
"I think we all need to accept that China is slowing structurally — we use the word 'structural' and really, we mean 'permanently,'" he said.
"My expectation is, we say goodbye to (6% growth), it's very unlikely we ever get back to (6% growth).
I think this is a permanent slowdown in China," said Yetsenga.