On May 9, 2017, TerraVia Holdings, Inc. (the Company) entered
into a First Amendment to Lease Agreement (the Lease Amendment)
with Britannia Gateway II Limited Partnership (the Landlord) to
amend that certain Lease Agreement (the Lease), dated July 22,
2014, by and between the Company and the Landlord that provided
for the lease of approximately 106,076 rentable square feet
located at 225 Gateway Boulevard and 201 Gateway Boulevard, South
San Francisco, California (collectively, the Premises). The term
of the Lease expires on January 31, 2018.

to the Lease Amendment, the Company will reduce the size of the
Premises from approximately 106,076 rentable square feet to
approximately 41,973 rentable square feet (the Remaining
Premises) over the period from July 1, 2017 to January 31, 2018,
with a corresponding reduction in base rent, and extend the term
of the Lease with respect to the Remaining Premises from February
1, 2018 to (and including) January 31, 2026 (the Extended Lease
Term). The base rent for the Premises for the Extended Lease Term
will begin at $4.65 per square foot per month and rise to $5.92
per square foot per month over the eight year term. The Company
will also pay the Landlord for certain operating expenses.

The Lease Amendment provides the Company the option to extend the
term of the lease for an additional 8-year period beyond the
Extended Lease Term, subject to certain requirements.

The above is a brief description of the terms of the Lease
Amendment that are material to the Company, does not purport to
be complete, and is qualified in its entirety by reference to the
Lease Amendment, which will be filed as an exhibit to the
Companys Quarterly Report on Form 10-Q for the quarter ending
June 30, 2017.

The information set forth in Item 1.01 above is incorporated by
reference into this Item 2.03.