EnzymeWorks, Inc. and Dr. Alex Tao Respond to Press Release by Codexis, Inc.

SUZHOU, China–(BUSINESS WIRE)–In response to a recent inaccurate press release by Codexis regarding
the case Codexis, Inc. v. EnzymeWorks, Inc., Case No. 3:16-cv-00826-WHO
(the “Case”), EnzymeWorks and Alex Tao, Ph.D., make the following
statements:

As the discovery is approaching the end in the Case, Codexis has not
provided any valid evidence to support its claim that EnzymeWorks or
Alex Tao stole its trade secrets on plasmids or breached any contracts.
EnzymeWorks expects to recover a substantial amount of attorney fees
from Codexis for its baseless misappropriation claims. Dr. Tao expects
to recover both cost of suits and attorney fees from Codexis for its
meritless claims against him individually.

As for the patent infringement claim, because the actual sales of the
accused enzyme kits are only a small percentage of the potential legal
expenses for defending such claims, EnzymeWorks has chosen not to
contest the patent infringement claims and made an offer of judgment.
Accordingly, EnzymeWorks has recently entered a stipulation for a
summary judgment on the patent infringement claim. There is, however, no
evidence for willful infringement. Because its offer of judgment is more
than sufficient to cover the damage awards for the patent infringement
claims, EnzymeWorks is expected to recover cost of suits from Codexis
for the patent infringement claims. Both EnzymeWorks and Dr. Tao may
also sue Codexis and its CEO John Nicols for defamation and trade libel
for their improper press releases.

About EnzymeWorks: EnzymeWorks is world renowned for enzyme
development and contract fermentation including enzyme manufacturing and
production of cofactors such as NAD, NADP and UDP sugar series. Members
of its management and research team have filed over 100 patents and
received numerous industrial honors and awards in the field of
biocatalysis and biomanufacturing.

About Dr. Alex Tao: Dr. Tao, with his advanced education in both
chemistry and biology, has nearly 20 years of industrial experience in
biocatalysis for green chemistry and chemical manufacturing. He has
received several international honors and awards, contributed to over
100 publications, and co-authored 15 widely-used books in these
technical fields, including two pioneering treatises entitled
Biocatalysis for the Pharmaceutical Industry and Biocatalysis for Green
Chemistry and Chemical Process Development.

Contacts

For EnzymeWorks Public Relations
Minhao Yan, +86-512-88838789
services@enzymeworking.com