Owners of projects, private companies or government bodies, usually require surety bonds from their contractors to protect themselves from the enormous cost of contractor failure. No construction project owner, public or private, can afford to take the risk in awarding a contractor whose responsibility is uncertain or who may go into liquidation halfway through the job. Thus, in order to seal a contract with an owner, a contractor needs a surety company’s financial resources to back the contractor’s commitment to completing the contract. Sub-contractors may also be required to obtain surety bonds to help the main contractor manage risk, particularly if the sub-contractor holds a significant part of the job or is a specialized contractor that is difficult to replace. Chartis Singapore Insurance Pte. Ltd. rigorous prequalification measures include ensuring that the contractor has a good track record of experience in completing similar contracts, it has the necessary management expertise and resources to complete the works and that it has established lines of credit with reputable banks.