Originally CSR was the Colonial Sugar Refining Company hence CSR...

Originally CSR was the Colonial Sugar Refining Company hence CSR but sold this part of company to Wilmar Sugar in 2009. Obviously they kept brand name here as well known. Just go onto CSR website and see what they do... mainly building materials which they had for long time. CSR originally started in 1855 so goes way back and have had various successes and misadventures along the way.
Just google and do your homework. They are a quality company and i worked with them for 12 years many years ago and they were the best... still have my original shares i purchased back then and made lots of money through mergers and demergere over the years...but they are a quality company and buliding will continue in this country as the population continually expands. In my opinion worth investing in especially at these levels. But DYOR and good luck.