Data Privacy and Data Residency in East Asia: What B2B Buyers Ask
No single rulebook
Europe has one data protection regulation. This region has a separate law in each market, with different rules on consent, transfers abroad and breach notification. A compliance approach built for GDPR is a good starting point because it is strict, but it does not cover everything.
Market by market
- Japan. A national data protection law covers personal information and transfers abroad. Japan and the EU recognise each other's regimes as adequate. Government cloud purchases use a security assessment scheme, and enterprises often ask where data is hosted.
- South Korea. One of the strictest privacy laws in the region, with detailed consent and security requirements. The public sector has its own cloud security certification, which foreign providers find demanding.
- Taiwan. A personal data protection law applies across sectors, with additional rules from financial and other regulators.
- Hong Kong. A long-standing privacy ordinance, with guidance on transfers and on security.
What enterprise buyers ask
Where is our data hosted? A hosting region in the country is the strongest answer. A regional location, such as Singapore or Tokyo, satisfies many private-sector buyers. Hosting only in the US is a common reason to lose a deal.
Can data leave the country? Know which data stays local, which is transferred and on what legal basis.
Which certifications do you hold? International standards such as ISO 27001 and SOC 2 are widely recognised. Some sectors ask for local schemes.
How do you meet our regulator's rules? Banks will send detailed questionnaires based on their financial regulator's outsourcing and technology risk requirements.
Who has access? Buyers ask whether staff outside the country can see their data, and how access is logged.
Decisions to make early
- Pick a regional hosting location. Singapore and Tokyo are the most common first choices because the major cloud providers have full regions there.
- Decide which sectors you will sell to first. Banking and government have the heaviest requirements. Starting with less regulated industries shortens the first sales.
- Use your partner. Local system integrators know what regulators and buyers expect and can host or operate the service where a local operator is required.
- Prepare a data sheet that states what you collect, where it is stored, who can access it and which certifications you hold.
Why this is a go-to-market issue
At compensIT we handled payroll and income data for millions of people under European privacy and banking rules. The lesson applies here too. Where data sits and who can see it are decisions about the product and the architecture, and they need to be made before the sales team is in front of a bank.
Common questions
Is there an Asian equivalent of GDPR?
No. Each market has its own law. Several are modelled on similar principles, but the requirements differ and must be checked country by country.
Do I need to host data in each country?
Not for every customer. Many private-sector buyers accept a regional location. Banks, government bodies and some regulated industries in markets such as South Korea and Japan may require local hosting.
Which cloud region should a US SaaS company choose first for East Asia?
Singapore or Tokyo for most companies, depending on where the first customers are.