In addition to provision by the listed company at its own initiative, the TWSE also collects information regarding material events from the following relevant sources:
- Mass media reportage.
- Letter from the competent authority.
- Financial reports that the listed company submits in accordance with Article 36 of the Securities and Exchange Act.
- Clear evidence provided by the listed company's trade association or investors.
- Matters disclosed by the listed company in accordance with The TWSE Procedures for Verification and Disclosure of Material Information of Companies with Listed Securities.