Thean Hou Temple provides marriage registration services:
In case for those who are looking for the opening hours, the Marriage Registration Office’s hours are:
Monday to Saturday- 9am to 5pm
Sunday/Public Holiday: Closed
Thean Hou Kong is under the Selangor Territory of Hainan Association. Their official website is: http://www.hainannet.com/english_site/eng_index.htm
If you require more information, please go to their website and click on the Services> Marriage and download the pdf documents on the requirements.