Niagen Bioscience, Inc. — Director's Dealing 2017

May 26, 2017

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ChromaDex Corp. (CDXC)
CIK: 0001386570
Period of Report: 2017-05-24

Reporting Person: Pioneer Step Holdings Ltd (10% Owner)
Reporting Person: Chau Hoi Shuen Solina Holly (10% Owner)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2017-05-24	Common Stock	P	2521526	$2.60	Acquired	3059988	Direct

Footnotes

F1: Pioneer Step Holdings Limited ("Pioneer Step") acquired 2,521,526 shares of the Issuer's common stock at the closing of the second tranche pursuant to the Securities Purchase Agreement, dated April 26, 2017 the ("SPA"), by and among the Issuer, Champion River Ventures Limited ("Champion River") and Pioneer Step, as amended by the First Amendment to Securities Purchase Agreement, dated May 24, 2017 (the "First Amendment"), by and among the Issuer, Champion River and Pioneer Step.

F2: The shares are held directly by Pioneer Step. The sole shareholder and sole director of Pioneer Step is Chau Hoi Shuen Solina Holly ("Solina Chau"). Solina Chau disclaims Section 16 beneficial ownership of the securities held by Pioneer Step, except to the extent of her pecuniary interest therein, if any.