Exhibit 99.1 FORM 4 JOINT FILER INFORMATION Names of Joint Filers: Pioneer Step Holdings Limited Chau Hoi Shuen Solina Holly Address of Joint Filers: c/o 29th Floor, Harbour Centre 25 Harbour Road Wanchai, Hong Kong Designated Filer: Pioneer Step Holdings Limited Issuer and Ticker Symbol: ChromaDex Corporation [CDXC] Date of Event: May 24, 2017 Signatures of Joint Filers: Pioneer Step Holdings Limited By: /s/ Ng Ngar Bun Raymond ----------------------- Attorney-in-Fact Chau Hoi Shuen Solina Holly By: /s/ Ng Ngar Bun Raymond ----------------------- Attorney-in-Fact