SinoMab BioScience Limited
SinoMab BioScience Limited (HKSE: 3681) is trading at HK$1.00, about ₹12 at today's HKD/INR rate, as of 25 Sep 2026, 4:08 AM ET, down 4.76% today. Indian residents can buy SinoMab BioScience from India on Paasa under the RBI's Liberalised Remittance Scheme.
Quote
Today's low
HK$1.00
Today's high
HK$1.07
52 week low
HK$0.99
52 week high
HK$2.19
3681 opened at HK$1.06, closed previously at HK$1.05, and has traded between HK$0.99 and HK$2.19 over the past 52 weeks.
About
SinoMab BioScience Limited is a biopharmaceutical enterprise that specializes in the comprehensive process of discovering, developing, producing, and marketing therapeutic solutions for various immunological disorders. Their approach predominantly involves monoclonal antibody (mAb)-based biologics. A key asset in their portfolio is SM03, an innovative anti-CD22 monoclonal antibody. This drug is currently in Phase III clinical trials for rheumatoid arthritis (RA), with additional clinical investigations underway for other immune-related conditions such as systemic lupus erythematosus (SLE), Sjogren's syndrome (SS), and non-Hodgkin's lymphoma (NHL). The company is also progressing with SN1011, a Bruton's tyrosine kinase inhibitor. This compound is in Phase II clinical trials for pemphigus and has commenced Phase I trials for multiple sclerosis, SLE, and neuromyelitis optica spectrum disorder (NMOSD). Furthermore, SinoMab maintains an active preclinical pipeline. This includes SM17, which targets asthma, atopic dermatitis, and idiopathic pulmonary fibrosis; SM06, intended for RA, SLE, NMOSD, and SS; SM09, in development for NHL and RA; and TNF2, focused on a range of autoimmune diseases. Founded in 2001, SinoMab BioScience Limited is based in Pak Shek Kok, Hong Kong, and conducts its business activities across Mainland China, the Cayman Islands, and Hong Kong.
Key statistics
Avg. volume
2.42M
Market cap
HK$1.38B
P/E Ratio
-6.46
Price-to-sales ratio
0.00
Enterprise value
CN¥1.27B
Free cash flow yield
-7.55%
Debt-to-equity ratio
0.74
Return on equity
-41.81%
ROIC
-25.43%
Beta
0.66
Dividend yield
0.00%
Last dividend
HK$0.00
Financial overview
Revenue
CN¥0.00
Earnings per share
-CN¥0.08
Free cash flow
-CN¥95.78M
Net profit margin
0.00%
Gross margin
0.00%
EBITDA
-CN¥72.11M
Revenue growth
-100.00%
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This is not an investment recommendation
How to buy SinoMab BioScience from India
Indian residents can buy SinoMab BioScience shares through Paasa in four steps. Funds leave India under the RBI's Liberalised Remittance Scheme and the shares are held in your own name with Interactive Brokers.
Open a Paasa account
Complete digital KYC with your PAN, Aadhaar and address proof. Your brokerage account is opened in your own name with Interactive Brokers.
Add funds under LRS
Transfer INR from your Indian bank account. Your bank reports the remittance under the RBI's Liberalised Remittance Scheme and converts it to US dollars and then to HKD.
Search for SinoMab BioScience and place an order
Find SinoMab BioScience by name or by its ticker, 3681, and choose an order type. Many Hong Kong listings trade in board lots, so the smallest order is one lot rather than one share. SinoMab BioScience trades 7:00 am – 1:30 pm IST; orders can only execute during that window.
Track holdings and download tax reports
Follow your SinoMab BioScience position in HKD and INR. SinoMab BioScience pays no dividend today, so your filing is the capital-gains statement plus the Schedule FA holding line.
Read the full guide: how to invest in SinoMab BioScience from India
Trading and taxes when buying SinoMab BioScience from India
Trading and limits
- Trading hours
- 9:30 am – 4:00 pm HKT
- LRS limit
- $250,000Per financial year, under the RBI's Liberalised Remittance Scheme.
Tax for Indian residents
- TCS on remittance
- 20%Collected by your bank on LRS remittances above ₹10 lakh in a financial year. The TCS is adjustable against your income-tax liability.Adjusting TCS against your tax
- Capital gains in India
- 12.5% or slab rateGains on shares held for more than 24 months are long-term and taxed at 12.5%. Gains on shares held for 24 months or less are short-term and taxed at your income-tax slab rate.Capital gains explained
- Dividends
- NoneSinoMab BioScience does not currently pay a dividend. If it starts, dividends are taxed at your slab rate in India.Dividend tax explained
- Estate or inheritance tax
- May applyHong Kong has no estate duty.Estate tax explained
Custody. Shares are held in your own name at Interactive Brokers, segregated from Paasa's own assets.
FAQs
Can Indian residents buy SinoMab BioScience stock?
Yes. SinoMab BioScience (3681) has been listed on the Hong Kong Stock Exchange since 2019, in the Biotechnology industry, and Indian residents can buy it through Paasa. You fund the account from your Indian bank under the RBI's Liberalised Remittance Scheme and the money is converted to US dollars and then to HKD. Shares are held in your own name at Interactive Brokers, segregated from Paasa's own assets.
How much does one SinoMab BioScience share cost in rupees?
One SinoMab BioScience share is HK$1.00 — about ₹12 at an HKD/INR rate of 12.25 on 24 Sep 2026. Both the SinoMab BioScience price and the rupee rate move during the day, so the rupee cost changes with them.
What are the LRS and TCS rules for buying SinoMab BioScience from India?
Remit up to $250,000 per financial year under the RBI's Liberalised Remittance Scheme (LRS). Banks collect 20% tax at source on LRS remittances above ₹10 lakh in a financial year; the TCS is adjustable against your income-tax liability. FX and the LRS declaration are handled by your bank when you fund your account.
What is the minimum I can buy of SinoMab BioScience?
Many Hong Kong listings trade in board lots, so the smallest order is one lot rather than one share.
How are gains on SinoMab BioScience shares taxed in India?
Hong Kong generally does not levy capital gains tax on non-resident individual investors for HKEX-listed stocks, so the tax is an India-side one. Gains on shares held for more than 24 months are long-term and taxed at 12.5%. Gains on shares held for 24 months or less are short-term and taxed at your income-tax slab rate. The gain is computed in rupees using the HKD/INR rate on the purchase and the sale date, so the rupee move counts alongside the SinoMab BioScience price. Paasa issues a capital-gains statement for your return.
Does SinoMab BioScience pay a dividend?
No. SinoMab BioScience does not currently pay a dividend, so holding it produces no dividend income to declare in India. If it starts paying one, the Indian treatment is the usual one — dividends are taxed at your slab rate in India — and Paasa's dividend report would show the gross amount and any tax withheld.
When can I trade SinoMab BioScience from India?
The Hong Kong Stock Exchange trades 7:00 am – 1:30 pm IST in Indian time. It also halts for lunch, 9:30 am – 10:30 am IST. Orders can only execute during that window.
Is there estate or inheritance tax on SinoMab BioScience shares held from India?
Hong Kong has no estate duty.
Do I have to declare SinoMab BioScience shares in my Indian tax return?
Yes. Foreign shares held on 31 March must be reported in Schedule FA of your Indian income-tax return. Paasa gives you a Schedule FA-ready statement listing your SinoMab BioScience holding, its cost and its closing value.
How do I sell SinoMab BioScience and bring the money back to India?
You sell during market hours (7:00 am – 1:30 pm IST) and the proceeds settle in HKD in your Paasa account. From there you can hold the balance, reinvest, or repatriate. Funds can be withdrawn in any currency to any bank account in your own name. Whether the sale is short- or long-term is decided by the 24-month holding period.