Finally had a little time to set up the TV & the legion of remotes on the coffee table. Wasn't able to find anything online, so I figure I'll do a quick blurb.
The Sony RM-ADP021 doesn't seem to have any three-digit codes for Haier TVs, or newer brands (Visio, Hisense, etc.). As they mention in one of their FAQ entries, you can go trial-and-error 'til you find one that works.