Walk into a hospital in Hsinchu on a weekday afternoon and you can see the paradox in one frame. A nurse pulls up a patient chart on an iPad. A radiology tech wheels a portable ultrasound past a poster advertising the hospital’s AI-triage pilot. And in the referral office at the end of the corridor, a fax machine, sitting on a shelf next to a laser printer, dials a regional medical center that will admit the patient tomorrow.
Hsinchu is a fifteen-minute drive from TSMC’s Fab 12, one of the plants that produces the most advanced semiconductors on Earth. Taiwan’s digital-government portals are among the most sophisticated in Asia. Broadband is nearly universal. And every hospital feeding referrals up and down the National Health Insurance network keeps a fax number on its intake form, a red chop pad on the reception desk, and a copper phone line to carry both.
The reason is specific. Taiwan’s legal, medical, and regulatory workflows have not been engineered off paper yet, because the paper-with-a-stamp is still the thing the counterparty accepts.
The chop is the signature
The center of the story is a small red pad and a carved cylinder. In Taiwan, a personal chop (印章) or company chop (公司大小章) is not decorative. It carries the same legal authority as a Western signature. A document stamped with the correct company chop is treated as binding, and who physically applied the stamp does not change that.
Taiwan updated its Electronic Signatures Act in May 2024, putting compliant e-signatures on the same legal footing as physical signatures in principle. The Taipei office of Winkler Partners, one of the country’s better-known law firms on the topic, still cautions that “Taiwan banks and large corporations remain conservative, often insisting on physical chops and signatures” in practice. The firm adds that “many regulations and regulatory agencies continue to require wet ink chops or signatures on documents submitted, in particular notarized documents and powers of attorney.” The amended Act allows administrative exclusions through May 2027, and a number of ministries have kept them in place.
The knock-on effect for fax is direct. Once the artifact has to be paper, and the paper has to carry a wet stamp, the fastest way to move that page between two offices without a courier is over a phone line to a fax modem. Email attachments and portal uploads work for the drafting stage. For the executed page, the counterparty typically wants either the original in hand or an inbound fax that produces the same time-stamped transmission report the office is already trained to file.
The referral is a paper form
The other big pocket sits inside the National Health Insurance system. Taiwan runs a formal two-way referral workflow (雙向轉診) that moves patients between clinics, regional hospitals, and medical centers as their conditions demand. The National Health Insurance Administration uses tiered copayments to make the workflow economically real: a patient who walks into a medical center without a referral pays a substantially higher out-of-pocket cost than a properly referred patient. The referral form is the ticket.
Individual hospitals still handle those forms on paper. Taiwan Adventist Hospital’s referral page, to take a public example, tells clinicians that each referral form is valid for ninety days from the date of issuance and must be presented for each new specialty consultation. On the receiving end, a hospital referral office typically wants a stamped form in advance so the specialty clinic can pre-schedule the patient. Fax is how the form usually arrives before the patient does.
Layered on top of the routine referrals is a second pocket of paper traffic: workflows whose recipient is a small clinic without an interoperable electronic medical record (EMR). Taiwan’s largest hospitals run modern EMR platforms. Many neighborhood clinics do not. When a discharge summary needs to reach a family doctor who does not sit on the same network, the pragmatic solution is the one that has always worked: cover sheet, fax number, transmission report.
The moment the loop became visible
For roughly two months in early 2025 the underlying dependency stopped being invisible.
On February 9, 2025, Mackay Memorial Hospital in Taipei was hit by CrazyHunter, a ransomware built from an open-source toolkit. More than five hundred computers across the Taipei and Tamsui campuses were encrypted, and emergency and outpatient systems fell offline. Investigators later concluded the attackers had exfiltrated data on roughly 16.6 million patient records, one of the largest healthcare breaches Taiwan has ever reported. Two months later, in April, Chansn Hospital in Taoyuan was hit with a similar attack that exposed another 80,000 patient records. Taiwan’s National Security Bureau reported that intrusion attempts against the country’s networks were averaging roughly 2.63 million per day in 2025, with the hospital sector one of the newly prominent targets.
The important detail for this story is what came next. In the wake of the Mackay wave, the Ministry of Health and Welfare issued Taiwan’s first “Hospital Ransomware Response Guidelines,” codifying the operating procedures a hospital is expected to follow when its electronic systems are encrypted. Every version of that playbook has to answer the same question: when the EMR is unreadable and the pharmacy printer will not talk to the network, how does a physician get a critical result or a referral form to a colleague across town? The answer, in every hospital that still had one, was the analog channel that had never been switched off: the phone line, the printed form, and the fax modem waiting in the referral office.
The Taiwan fax rail did not survive the ransomware wave. It survived every year before it, quietly, and the wave was the moment that made the reason legible.
The infrastructure keeps quietly working
Look at the plumbing and the fax rail is not a museum piece; it is a live network. Chunghwa Telecom, the incumbent, reported 8.89 million fixed-line subscribers at the end of 2024, alongside 3.74 million HiNet broadband customers. Fixed-line broadband penetration sits above sixty-five percent of households. A copper or VoIP line that can move a voice call can move a fax tone, and almost every hospital, clinic, ministry office, notary, and bank branch in Taiwan has one.
The front doors of the ministries themselves tell the same story. The Ministry of Health and Welfare’s contact page lists a headline fax number of +886 2-8590-6000 alongside its main phone line and inquiry portal. The Taxation Administration under the Ministry of Finance publishes +886-2-2396-9038 as its official fax. The Ministry of Economic Affairs, the Financial Supervisory Commission, and the Bureau of Standards, Metrology, and Inspection all keep fax numbers on their published English contact pages. These are not fossils. They sit on the pages a corporate secretary filing an annual return, a household appealing a tax bill, or a compliance officer serving a formal notice is expected to reach for.
The takeaway is not that Taiwan has “not caught up.” Taiwan has caught up almost everywhere except at the small number of points where the office on the other end of the line still requires paper with a stamp. At those seams, the fax number stays on the contact page, because the fax number is the only channel that produces the receipt the office knows how to file.
The reframe
The version of the story that treats Taiwan as a technology laggard on fax collapses at the first factory tour. This is the country that makes the substrate for the AI industry. This is the country whose digital-services platform lets a citizen file taxes from a mobile phone. Taiwan did not fail to digitize.
What Taiwan did was digitize the workflows whose artifacts could be digital, and leave the workflows that ended at a stamped page on their existing rails. Chops are still what banks and notaries and several regulators trust. Referral forms still travel between hospitals and specialty clinics that do not share a common EMR. Ministry offices still publish fax numbers because a transmission report is a receipt they know how to file. The Electronic Signatures Act’s 2024 amendment points at where this is going, and the 2027 transition deadline tells you how quickly it will not get there.
Different from Japan, whose hanko culture keeps a personal seal on the workflow for reasons that are deeply cultural before they are administrative. Different from the Philippines, whose fax survives because its largest customer is US healthcare. Different from Egypt, where the stamp is the legal atom of state authority. Taiwan’s fax survives because a chip-making country still requires a wet chop for a bank account, a stamped referral for a specialist visit, and a printed page for a growing list of regulatory filings, and no one has engineered the seam out yet.
For anyone who needs to move a document to or from Taiwan without owning a fax machine of their own, our Taiwan destination page covers the country code, dialing habits, and the workflows where a fax is still the right tool. For an occasional cross-border send without the subscription overhead, pay-as-you-go fax online is usually the right frame.
The country that makes the world’s most advanced chips also still faxes its lab results. Both statements can be true at once. In Taiwan, that is the whole story.