INTENDED USE The Finecare™ Vitamin D Rapid Quantitative Test along with Finecare™ FIA Meter is a fluorescence immunoassay quantitative determination of total 25(OH) D2/D3 level in human serum or plasma. Results are to be used in conjunction with other clinical and laboratory data to assist the clinician in the assessment of vitamin D sufficiency. STORAGE AND STABILITY 1. Store at 4°C～30°C up to the expiration date. 2. The solid marker bottle can be stored at 2°C～8°C for 28 days after being reconstituted. 3. Do not remove the device from the pouch until ready to use. The Test Cartridges should be used within 1 hour once opened.

INTENDED USE The Finecare™ 2019-nCoV lgM/lgG Test is a fluorescence immunoassay used along with Finecare™ FIA Meters for qualitative detection of IgG and IgM antibodies of novel coronaviruses (2019-nCoV) in human whole blood, serum and plasma specimen. Clinically, the test is to be used as an aid in the diagnosis of coronavirus infection disease (COVID-19), which is caused by 2019-nCoV. The test provides preliminary test results. Negative results cannot exclude the possibility of 2019-nCoV infection and they cannot be used as the sole basis for treatment or other management decision. STORAGE AND STABILITY 1. Store at 4-30°C in the sealed pouch up to the expiration date printed on the package. Do not freeze. 2. The test device should be used within 1 hour after taking out from the foil envelope. 3. Keep away from sunlight, moisture and heat. 4. Kit contents are stable until the expiration date printed on the outer box.

The OnSite HSV-2 IgG/IgM Rapid Test is a lateral flow chromatographic immunoassay for the qualitative detection and differentiation of antibodies (IgG and IgM) to herpes simplex virus 2 (HSV-2) in human serum, plasma or whole blood. Unique test that utilizes glycoprotein G2 to differentiate between HSV-1. and HSV-2 that allows for an early start of treatment action. Immediate determination of either acute or chronic infection by detecting and differentiating IgG and IgM anti-HSV-2. High confidence as test is in agreement with market leading European ELISA: 95.3% IgG; 100% IgM. Flexible specimen types including serum, plasma, or whole blood which allows testing at any time without special specimen preparation. Small sample volume (10 µL) enables multiple testing on the same specimen without having to re-draw the patient. Initial treatment action can begin during patient’s visit as test results are available in 10 minutes. Easily transported, and can be stored for 24 months, 2-30oC. Individually sealed foil pouches containing: One cassette device One desiccant Capillary tubes (10 µL) Sample diluent (REF SB-R0213, 5 mL/bottle) Package insert (instruction for use) CTK Products at a Glance HSV-1 & HSV-2 Flyer Insert U.S. CDC HSV Homepage: Genital Herpes Fact Sheets WHO: Herpes Simplex Virus Fact Sheets

The OnSite HSV-1 IgG/IgM Rapid Test is a lateral flow chromatographic immunoassay for the qualitative detection and differentiation of antibodies (IgG and IgM) to herpes simplex virus 1 (HSV-1) in human serum, plasma or whole blood. Type-specific detection by utilizing glycoprotein G1. Single test that detects and differentiates IgG and IgM anti-HSV-1. High confidence as test is in agreement with market leading ELISA test: 90.7% IgG; 85.0% IgM. Flexible specimen types including serum, plasma, or whole blood which allows testing at any time without special specimen preparation. Small sample volume (10 µL) enables multiple testing on the same specimen without having to re-draw the patient. Initial treatment action can begin during the patient’s visit as test results are available in 10 minutes. Easily transported, and can be stored for 24 months, 2-30oC. Individually sealed foil pouches containing: One cassette device One desiccant Capillary tubes (10 µL) Sample diluent (REF SB-R0203, 5 mL/bottle) Package insert (instruction for use) CTK Products at a Glance HSV-1 & HSV-2 Flyer Insert U.S. CDC HSV Homepage: Genital Herpes Fact Sheets WHO: Herpes Simplex Virus Fact Sheets

The OnSite hCG Combo Rapid Test is a lateral flow chromatographic immunoassay for the early detection of pregnancy, by providing a quick direct visual test for the placental hormone, hCG in human serum, plasma and urine. It can be performed within 5-10 minutes by minimally skilled personnel, and without the use of laboratory equipment. The OnSite hCG Combo Rapid Test is not intended for quantitative results, nor for over the counter (OTC) sales. It is intended to meet all requirements for yielding rapid, easily read, qualitative results for the purpose of early pregnancy detection via assay of hCG, a placental hormone that may be present in human serum, plasma or urine. The hCG detection limit the OnSite hCG Combo Rapid Test is 12.5 mIU/mL in serum or plasma specimen, and 25 mIU/mL in urine specimen. It is designed for professional use only, and provides only preliminary analytical data. For a final diagnosis of pregnancy, a more specific alternative clinical method must be used to obtain a confirmed analytical result. Clinical accuracy: In comparison with a reference chemiluminecsence or ELISA, hCG detection is 100% sensitivity and 100% specificity in urine specimens 100% sensitivity and 99.5% specificity in serum specimens Analytical sensitivity: 100% positive detection rate at 12.5 mIU/mL in serum/plasma specimens and 100% positive detection rate at 25 mIU/mL in urine specimens Analytical specificity: no cross reactivity with 1,000 mIU/mL human luteinizing hormone (hLH), 1,000 mIU/mL human follicle stimulating hormone (hFSH), and 1,000 mIU/mL human thyroid stimulating hormone (hTSH) Dose hook effect: no dose hook effect was observed for hCG at concentrations up to 500,000 mIU/mL in urine specimens Interference: No interference was seen with 35 biological and chemical analytes commonly found in OTC, prescriptions or abuse drugs in urine or serum/plasma specimens, as well as pH 4-9 (see detail in the package insert) Shelf life: 24 month Kit box package: 1. Individually sealed foil pouches containing; a. One dip strip device b. One desiccant 2. One package insert (instruction for use) Tube package: 1. Strip Package 2. One desiccant 3. One package insert (instruction for use) CTK Products at a Glance Drugs.com: Overview of Human Chorionic Gonadotropin Inserts

The OnSite Leptospira IgG/IgM Combo Rapid Test is a lateral flow chromatographic immunoassay that can be performed within 15-20 minutes by minimally skilled personnel, and without the use of laboratory equipment. This test is intended to be used for the simultaneous detection and differentiation of IgG and IgM antibodies to Leptospira interrogans (L. interrogans) in human serum, plasma or whole blood. It is intended to be used as a screening test by professionals, and provides a preliminary test result to aid in the diagnosis of infection with L. interrogans. Any interpretation or use of this test result must also rely on other clinical findings as well as on the professional judgment of health care providers. Recommended for use: Any person presenting with clinical signs or symptoms consistent with acute infection with interrogans including: high fever, headache, chills, muscle aches, vomiting, jaundice, red eyes, abdominal pain, diarrhea, skin rash After exposure to a known contaminated source Accuracy: 100% specificity and 100% sensitivity in comparison with a reference rapid test on the market Cross Reactivity: No false positive results were observed on specimens from TP, HIV, Dengue, TB, Typhoid Ab , HBsAg, HCV Ab, HEV Ab, H.P Ab, HAV, HCG, RF, ANA, HAMA Interference: No interference were seen with substances: Salicylic acid: 4.34 mmol/L; Glucose: 55 mmol/L; Sodium citrate: 3.8 %; Heparin: 3,000 U/L; Creatinine: 442 μmol/L; Bilirubin: 20 mg/dL; EDTA: 3.4 μmol/L; Hemoglobin: 2g/L; Human IgG: 1000 mg/dL; AlbuminL 60 g/L Shelf life: 24 month Individually sealed foil pouches containing: One cassette device One desiccant 5 μL capillary tubes Sample diluent (REF SB-R0101, 5 mL/bottle) One package insert (instruction for use) CTK Products at a Glance Inserts U.S. CDC Leptospira Homepage: About Leptospira WHO: Leptospirosis Fact Sheets

The OnSite Malaria Pf/Pv Ab Combo Rapid Test is a lateral flow chromatographic immunoassay for the simultaneous detection and differentiation of antibodies including IgG, IgM and IgA to Plasmodium falciparum (Pf) and Plasmodium vivax (Pv) in human serum, plasma or whole blood. Uses serum, plasma or whole blood specimens Utilizes highly purified antigen to ensure test sensitivity and specificity Detects total antibodies to Pf and Pv Ease of use, requires minimal training of personnel Quick turnaround time to results Individually sealed foil pouches containing: One cassette device One desiccant Two-mark capillary tubes (10/20 µL) Sample diluent (REF SB-R0111, 5 mL/bottle) One package insert (instruction for use) CTK Products at a Glance Flyer Inserts Malaria Pf/Pv Ag Rapid Test Presentation Malaria Pf/Pan Ag Rapid Test Presentation Poster U.S. CDC Malaria Homepage: About Malaria WHO: Malaria Fact Sheets

The OnSite HBV-5 Rapid Test is a lateral flow chromatographic immunoassay for the qualitative detection of hepatitis B surface antigen (HBsAg), hepatitis B surface antibody (HBsAb), hepatitis B e-antigen (HBeAg), hepatitis B e-antibody (HBeAb), and hepatitis B core antibody (HBcAb) in human serum or plasma. It is intended to be used by healthcare professionals to aid in the diagnosis of infection with hepatitis B virus (HBV). Any use or interpretation of this preliminary test result must also rely on other clinical findings and the professional judgment of healthcare providers. Alternative test method(s) should be considered to confirm the test results obtained by this device. Panel format cassette to conveniently test for five targets at once Utilize all markers to help distinguish between acute and chronic infections Result in 15 minutes Individually sealed foil pouches containing: One cassette device One desiccant Plastic droppers Package insert (instruction for use) CTK Products at a Glance Inserts Poster U.S. CDC: hepatitis B Virus FAQs for Health Professionals WHO: Health Topic for Hepatitis

The OnSite HIV 1/2 Ab Plus Combo Rapid Test is a lateral flow immunoassay for the simultaneous detection and differentiation of HIV-1 and HIV-2 antibodies (IgG, IgM, IgA) in human serum, plasma or whole blood. 3rd Generation, double-antigen based test to increase the sensitivity in early detection Requires only 20 µL of specimen Use serum, plasma or whole blood Results available within 15 minutes to allow prompt action to be taken at the point of care Performance validated with BBI low titre panel and Chinese FDA HIV Ab panel Individually sealed foil pouches containing: One cassette device One desiccant Capillary tubes (20 uL) Sample diluent (REF SB-R0011, 5 mL/bottle) Package insert (instruction for use) CTK Products at a Glance Flyer Inserts TB-HIV Rapid Test Presentation U.S. CDC HIV Homepage: About HIV WHO: Health Topic for HIV U.S. CDC HIV Testing 101