If you suspect that any business, company, or organisation is engaged in an agreement or conduct that infringes the Competition Act, please file a complaint with CCS.

Complaints can be lodged if you believe there has been a breach of any of the three prohibitions under the Competition Act namely: 

• Agreements, decisions and practices that prevent, restrict or distort competition ("the Section 34 prohibition")
• Abuse of a dominant position ("the Section 47 prohibition")
• Mergers and acquisitions that substantially lessen competition ("the Section 54 prohibition")

The CCS is interested in hearing from persons with useful information on cartel activity in Singapore. If you are aware of cartel activities and wish to provide the information, you may write, email or call the CCS hotline at 1800 3258282 to provide such information. Examples of useful information include:

• Companies/businesses who are part of the cartel;
• Origins of the cartel;
• The nature of the industry where the cartel is operating;
• Documents or other information evidencing the agreements, decisions or practices of the cartel.

The CCS undertakes to keep strictly confidential your identity and any information that may lead to your identification. Our officer will want to talk to you to obtain as much detail as possible. If our officer's initial assessment is that you have information that is likely to be of value to us, we will want to meet you to discuss the information in more detail.

In appropriate cases, a monetary reward can be paid to informants for information that leads to infringement decisions against cartel members.

You should note that complaints may not be pursued if the agreement, conduct or merger is excluded. Access this link for more information.

To make a complaint, in general, CCS would need you to contact it with the following information:

• Information about you and the organization you represent (if applicable);
• Information about the party or parties involved;
• A brief description of the agreement, conduct or merger that you are complaining about
• Any other relevant information and supporting documents