If your using SkyMiles you could also look into MH from KUL and, I am not sure but, Shanghai Airlines also flies from PVG (don't know if it's a scheduled or a charter) but they merged with MU who are eligible to burn miles with Delta. I assume if you can get the MU codeshare flight you should be able to redeem with your SkyMiles. MU also appears to serve MLE from Kunming via Colombo, link below.

If redeeming FB miles, Bangkok Airways also serves MLE from BKK

http://airlineroute.net/2010/10/26/mu-kmgcmbmle-w10/

According to the link the Shanghai Airlines flight is a scheduled one

http://airlineroute.net/2010/10/26/fm-pvgmle-w10/

Let us know if you are successful