UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER

PURSUANT TO RULE 13a-16 OR 15d-16

UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the Month of March 2021

Commission File Number: 001-39328

Genetron Holdings Limited

(Exact Name of Registrant as Specified in Its Charter)

1-2/F, Building 11, Zone 1

No.8 Life Science Parkway

Changping District, Beijing, 102206

People’s Republic of China

+86 10 5090-7500

(Address of principal executive offices)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Form 20-F  ☒                 Form 40-F  ☐

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1):  ☐

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7):  ☐

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Date: March 24, 2021

EXHIBIT INDEX

Exhibit 99.1

Genetron Health Releases New Data Results of HCCscreen^™ for Liver Cancer Early Screening in China

BEIJING, China, March 25, 2021 — Genetron Holdings Limited (“Genetron Health” or the “Company”, NASDAQ:GTH), a leading precision oncology platform company in China that specializes in molecular profiling tests, early cancer screening products and companion diagnostics development, today presented new data and results for HCCscreen^TM, a blood-based early screening test for hepatocellular carcinoma (“HCC”).

This multi-center prospective study, named the “HCCscreen^TM Investigational Study” (HIT), is a collaboration between Genetron Health and the National Cancer Center China that started in 2019. Among a total of 1,615 HBsAg+ individuals that completed the follow-up phase by February 2021, the primary outcome showed that HCCscreen^TM achieved 88% sensitivity and 93% specificity, compared with 71% sensitivity and 95% specificity, respectively, by ultrasound plus alpha-fetoprotein (AFP) combined. HCCscreen^TM also achieved 40.9% positive predictive value (PPV) and 99.3% negative predictive value (NPV). The study results are summarized in the following tables:

Table 1. HIT Results: Genetron HCCscreen^TM Final Analysis (N=1615)

Table 2. HIT Results: Ultrasound + AFP Final Analysis (N=1615)

Furthermore, stratified by tumor size, 49% (28/57) of the cases identified by HCCscreen^TM were in early stage, i.e. <3cm. These patients are expected to have much better prognosis than advanced stage ones. Additionally, HCCscreen^TM achieved sensitivities of 85% for tumor sizes of <3cm, 96% for 3-5cm, and 88% for >5cm. The results are summarized in the following table:

Table 3. HIT Results: Genetron HCCscreen^TM Sensitivities by Tumor Size

Previously, Genetron Health reported preliminary analysis results from the first 297 patients enrolled in the study. Compared with the preliminary results, the confidence interval of sensitivity had improved from 62%-100% to 80%-94%, and the confidence interval of specificity had improved from 89%-96% to 91%-94%. The preliminary study results are summarized in the following table:

Table 4. HIT Results: Genetron HCCscreen^TM Preliminary Data (N=297)

“We are very pleased with the new HCCscreen^TM data from this large, prospective cohort study, which showed overall better sensitivity data, and comparable specificity data versus the standard of care. These additional validation updates gave us more confidence about our assay’s performance, and we will move forward to initiate an NMPA registrational study in the second quarter of this year,” said Mr. Sizhen Wang, co-founder and CEO of Genetron Health. “Overall, HCCscreen^TM continues to be a leading liquid-biopsy early detection assay in hepatocellular carcinoma. We are delighted with our clinical and commercial progress to bring this product to more patients, and address an unmet, significant medical need in China.”

About HCCscreen^TM and Liver Cancer

In September 2020, Genetron Health received the U.S. Food and Drug Administration (“FDA”)’s Breakthrough Device designation for HCCscreen^TM, and the product has been commercialized recently as a lab developed test (“LDT”) in China.

Globally, liver cancer is the fourth most common cause of cancer-related death and the sixth in terms of incidence¹. China represents the largest market, accounting for almost half of the global incidences. New incidence in China was estimated to be around 393,000 per year, with 369,000 deaths². Market data by Frost and Sullivan estimated that as of 2019, among the 120 million high risk liver cancer population in China, around 74 million were HBV carriers.

HCCscreen^TM is powered by Genetron Health’s innovative and proprietary Mutation Capsule^TM technology, which enables detection of multiple methylation alterations in parallel with mutations in cell-free DNA from peripheral blood specimens.

References:

About Genetron Holdings Limited

Genetron Holdings Limited (“Genetron Health” or the “Company”) (Nasdaq:GTH) is a leading precision oncology platform company in China that specializes in cancer molecular profiling and harnesses advanced technologies in molecular biology and data science to transform cancer treatment. The Company has developed a comprehensive oncology portfolio that covers the entire spectrum of cancer management, addressing needs and challenges from early screening, diagnosis and treatment recommendations, as well as continuous disease monitoring and care. Genetron Health also partners with global biopharmaceutical companies and offers customized services and products. For more information, please visit ir.genetronhealth.com.

Safe Harbor Statement

This press release contains forward-looking statements. These statements are made under the “safe harbor” provisions of the U.S. Private Securities Litigation Reform Act of 1995. Statements that are not historical facts, including statements about the Company’s beliefs and expectations and prospectus of and plans for commercializing HCCscreen^TM in China, are forward-looking statements. Forward-looking statements involve inherent risks and uncertainties, and a number of factors could cause actual results to differ materially from those contained in any forward-looking statement. In some cases, forward-looking statements can be identified by words or phrases such as “may”, “will,” “expect,” “anticipate,” “target,” “aim,” “estimate,” “intend,” “plan,” “believe,” “potential,” “continue,” “is/are likely to” or other similar expressions. Further information regarding these and other risks, uncertainties or factors is included in the Company’s filings with the SEC. All information provided in this press release is as of the date of this press release, and the Company does not undertake any duty to update such information, except as required under applicable law.

Investor Relations Contact

US:

Hoki Luk

Head of Investor Relations

Email: hoki.luk@genetronhealth.com

Phone: +1 (408) 891-9255

David Deuchler, CFA

Managing Director | Gilmartin Group

Email: David@gilmartinir.com

Phone: (917) 209-5605

Media Relations Contact

Yanrong Zhao

Genetron Health

yanrong.zhao@genetronhealth.com

Edmond Lococo

ICR

Edmond.Lococo@icrinc.com

Mobile: +86 138-1079-1408

genetron.pr@icrinc.com