13D Filing: Pioneer Step Holdings Ltd and Chromadex Corp (CDXC)

Names of
Reporting Persons.

I.R.S. Identification Nos. of above persons (entities only)

CHAU HOI SHUEN SOLINA HOLLY

Check the Appropriate Box if a Member
of a Group (See Instructions)

(a)  ☐        (b)  ☒

SEC Use Only

Source of Funds (See Instructions)

AF

Check if Disclosure of Legal
Proceedings Is Required Pursuant to Items 2(d) or 2(e)  ☐

Citizenship or Place of
Organization

Permanent resident of the Hong Kong Special Administrative Region,
Peoples Republic of China

Number of

Shares

Beneficially

Owned by

Each

Reporting

Person

With

Sole Voting Power

3,059,988

Shared Voting Power

Sole Dispositive Power

3,059,988

Shared Dispositive Power

Aggregate Amount Beneficially Owned by Each Reporting Person

3,059,988

Check if the Aggregate Amount in Row
(11) Excludes Certain Shares (See Instructions)  ☐

Percent of Class Represented by Amount
in Row (11)

6.6% (1)(2)

Type of Reporting Person (See
Instructions)

IN