Out of curiosity, I visited their website. Basically, they help you to emigrate to other countries. Click here to see some of the services they provide.
I'm not sure how many such companies there are in Singapore. If there are more than a few, then it's really quite sad. It means that so many Singaporeans want to leave their country that a viable mini-industry has sprung up to help them do so.
Interestingly, OCSC is targetting Singaporeans who work in trades and occupations such as welding, fabrication, motor mechanics and so on. This is in sharp contrast to the typical profile that the Singapore government likes to paint of emigrating Singaporeans.
For example, in April last year, Lee Kuan Yew said that most Singaporeans are not actually able to leave. According to LKY, those Singaporeans who are able to leave are the "better-educated and talented ones", who represent the "top 20 to 30 per cent of educated Singaporeans".
It seems that this isn't quite true. For example, Australia does give priority to would-be immigrants who belong to a "skilled occupation". However, "skilled occupation" does not mean "higher education qualifications", but refers instead to skills which are actually in demand in Australia.
Australia's point system is described here. Motor mechanics, cooks and plumbers are awarded the same priority as accountants, engineers and lawyers .... and higher priority than life scientists, economists and mathematicians.