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Sinovac Receives Nasdaq Notification Regarding Late Filing of 2025 Half-Year Report BEIJING - Sinovac Biotech Ltd. (NASDAQ: SVA) (" SINOVAC " or the " Company "), a leading provider of biopharmaceutical products in China

Key Takeaway: Sinovac Biotech Ltd. has received a notification from Nasdaq indicating that it failed to comply with its Listing Rule regarding timely filing. This notification follows a previous delisting determination that the company is contesting at a scheduled hearing. Sinovac is preparing to present its views to the Nasdaq Hearings Panel in hopes of maintaining its listing. The company has a history of providing biopharmaceutical products and vaccines in China.

Market Sentiment Analysis

CONCERNS & RISKS

  • Sinovac did not meet Nasdaq's Listing Rule 5250(c)(2) due to late filing.
  • The company has received a delisting determination letter from Nasdaq.
  • The upcoming hearing on January 8, 2026, presents uncertainty for the company's listing.

Full Press Release Details

Sinovac Receives Nasdaq Notification Regarding Late Filing of 2025
BEIJING - Sinovac Biotech Ltd. (NASDAQ: SVA) ("SINOVAC"
or the "Company"), a leading provider of biopharmaceutical products in China, today announced that it has received
a notification letter dated January 2, 2026 (the "Notification Letter") from Nasdaq Listing Qualifications ("Nasdaq"),
stating that the Company was not in compliance with Nasdaq's Listing Rule 5250(c)(2) since the Company did not timely file a Form
6-K containing an interim balance sheet and income statement as of the end of its second quarter of year 2025.
As previously disclosed, the Company received a delisting determination
letter (the "Staff Determination") from Nasdaq in November 2025. The Company requested a hearing before the Nasdaq
Hearings Panel to appeal the Staff Determination on November 19, 2025. Nasdaq has informed the Company that the Nasdaq Hearings Panel
will also consider the matter addressed in the Notification Letter at a hearing scheduled for January 8, 2026 at which the Company has
been invited to present its views regarding this matter.
The Company is evaluating the Notification Letter and intends to present
its plan and views to the Nasdaq Hearings Panel at the scheduled hearing with the objective of maintaining its Nasdaq listing.
Safe Harbor Statement
This announcement contains forward-looking statements within the meaning
of Section 21E of the Securities Exchange Act of 1934, as amended, and as defined in the U.S. Private Securities Litigation Reform Act
of 1995. These forward-looking statements can be identified by terminology such as "may," "will," "expect,"
"anticipate," "aim," "estimate," "intend," "plan," "believe,"
"potential," "continue," "is/are likely to" or other similar expressions. Such statements are based
upon current expectations and current market and operating conditions and relate to events that involve known or unknown risks, uncertainties
and other factors, all of which are difficult to predict and many of which are beyond the Company's or Board's control, which
may cause actual results, performance or achievements to differ materially from those in the forward-looking statements. Further information
regarding these and other risks, uncertainties or factors is included in the Company's filings with the U.S. Securities and Exchange
Commission. The Company and Board do not undertake any obligation to update any forward-looking statement as a result of new information,
future events or otherwise, except as required under law.
Sinovac Biotech Ltd. (SINOVAC) is a China-based global biopharmaceutical
company, with a mission of "supply vaccines to eliminate human diseases", the company specializes in the research, development,
manufacturing and commercialization of vaccines and related biological products that protect against human infectious diseases.
The company's diversified portfolio includes vaccines for influenza,
viral hepatitis, varicella, Hand-Foot-Mouth disease (HFMD), poliomyelitis, pneumococcal disease, etc., of which 3 vaccines have been prequalified
by WHO, including inactivated hepatitis A vaccine Healive , Sabin-strain inactivated polio vaccine (sIPV), and varicella vaccine.
SINOVAC has a leading edge in developing vaccines to combat infectious
disease outbreaks and was among the first to initiate R&D during major public health emergencies, including SARS, H5N1, H1N1, and
COVID-19. The company developed the world's first inactivated SARS vaccine (Phase I completed), China's first H5N1 influenza
vaccine (Panflu ), the world's first H1N1 influenza vaccine (Panflu.1 ), and CoronaVac , the most widely used inactivated
COVID-19 vaccine globally.
Beyond its marketed portfolio, the company is advancing a robust pipeline
that includes combination vaccines, recombinant protein vaccines and next-generation platforms such as mRNA technologies and antibodies.
With a long-standing commitment to innovation and global health, SINOVAC
is expanding its global footprint by strengthening partnerships with research institutions, international organizations, and local partners.
Through broader market presence, technological cooperation, and localized production, the company aims to accelerate vaccine development
and supply, enhance regional access to high-quality products, and better address unmet medical needs while improving preparedness for
For more information, please see the Company's website at www.sinovac.com.
Investor and Media Contact
Sinovac Biotech Ltd.

Frequently Asked Questions

What did Sinovac receive from Nasdaq on January 2, 2026?

Sinovac received a notification for failing to file an interim Form 6-K.

What was the consequence of Sinovac's late filing?

The late filing led to a non-compliance notification from Nasdaq.

When is Sinovac's hearing scheduled with the Nasdaq panel?

The hearing is scheduled for January 8, 2026.

What type of products does Sinovac specialize in?

Sinovac specializes in vaccines and biological products for infectious diseases.

What is the mission of Sinovac Biotech Ltd.?

Sinovac's mission is to supply vaccines to eliminate human diseases.

Last updated: Jan 2, 2026