GIC-backed Li Ning's shares crashed to 6-1/2 year low on profit warning

Did GIC carry out the necessary due diligence on Li Ning before it decided to invest in the company at the beginning of the year?

Reuters, 11 Jun 2012
(Reuters) - Private equity-backed Chinese sportswear brand Li Ning Co Ltd warned of a "substantial decline" in profit for 2012 due to weaker sales and higher marketing costs, knocking its shares to a 6-1/2 year low.
Shares in Li Ning, backed by TPG Capital and Singapore sovereign wealth fund GIC, fell as much as 7 percent to their lowest level since January 2006. The drop took its loss for the year to 13 percent, against a 1.8 percent gain for the benchmark Hang Seng Index Full story

Related:
TPG, GIC to invest $115 mln in China sportwear firm - Reuters (19 Jan 2012)