First, I'll note that Renaissance Publishing, based in Singapore, is not the same as Renaissance Ebooks Inc., the subject of another thread here.
Renaissance publishes through Lulu.com, but its website suggests that it has some bookstore presence for the four books it has published to date at Borders stores in Singapore. There's no information on staff, so it's impossible to judge what sort of background they have that would qualify them to run a publisher or to sell subsidiary rights on the international market (as they offer to do for established writers).
Renaissance is also running a contest for Singaporean authors, with nice prizes and the possibility of publication in an anthology. However, its contest guidelines include a substantial catch:
"Copyright and all related rights of the submitted entries are deemed to have been assigned unconditionally to Renaissance Publishing, in all regions and territories of the world. Renaissance Publishing shall edit the entries for the purpose of publication as it deems fit. Renaissance Publishing shall also have full liberty over the sale and re-assignment of copyright and all related rights of the entries to any third party/parties. No royalties or author fees are payable for the copyright of published entries unless otherwise contracted."
So just by entering the contest, you surrender copyright . Renaissance can thereafter do whatever it wishes with your entry, including publish it and/or sell it to others, without any compensation to you.
A Writer Beware if I ever saw one.