When you open a Taiwan stock market quote app, investors have definitely seen plenty of stock names followed by the two letters “-KY”—for example, 世芯-KY (3661) and 訊芯-KY (6451) under Hon Hai’s group. Many people who see it for the first time will wonder: what is KY? This article uses 世芯-KY (3661) and 訊芯-KY (6451), two KY stocks from the semiconductor sector, as examples to clearly explain what KY stocks are and what investors need to pay attention to.
What are KY stocks? Derived from F-share renaming—foreign first-listed companies
KY stands for “The Cayman Islands,” the abbreviation for the British Cayman Islands. In the early days of the Taiwan market, overseas companies of this kind were called “F shares,” where F stands for Foreign; later, they were gradually changed to be labeled as KY. Simply put, KY stocks usually refer to companies registered overseas that were not listed first in other countries, but instead chose Taiwan as the location of their first listing.
However, although the KY label literally comes from the Cayman Islands, when the market talks about KY stocks today, it is no longer limited to companies registered in Cayman. It has broadly come to refer to foreign companies that are registered overseas and choose Taiwan as their first listing. The place of registration could be Cayman, the British Virgin Islands, Samoa, and so on, while the actual operating locations could be Taiwan, China, the United States, or other markets.
Cayman Islands are commonly used for a very direct reason: it is a globally well-known low-tax or tax haven, allowing companies to carry out group restructuring, cross-border financing, equity arrangements, and tax planning through offshore holding structures. This in itself is not necessarily illegal, and it does not mean the company is definitely problematic; but for investors, offshore registration also adds risks related to information disclosure, legal jurisdiction, and capital allocation.
世芯-KY: Headquarters in Taiwan, registered in Cayman—an ASIC star
世芯-KY is one of the best examples for explaining KY stocks. Many people see “KY” and instinctively think it refers to a China-based company, but the operational core of 世芯電子 is actually in Taiwan. According to public information, the company name of 世芯-KY is 世芯電子股份有限公司; the foreign enterprise registration location is the Cayman Islands. It was established in 2003 and listed in Taiwan on October 28, 2014. Its main business is research, development, design of ASIC and SoC, and related services.
That means 世芯-KY’s “KY” comes from its legal structure, not from where it mainly operates. Legally, the parent company is registered in Cayman, but its R&D, operations, and capital-market listing are highly tied to Taiwan. This is the most core characteristic of KY stocks: the place of registration, the listing venue, and the actual operating location can be three different concepts.
From an industry perspective, 世芯-KY is an ASIC design services company that the market is highly focused on amid the AI and advanced process wave. In the company’s annual report materials, 世芯 focuses on ASIC and SoC solutions built on deep submicron processes, aiming to help system product customers shorten the design time for highly complex chips and reduce time to market.
訊芯-KY: Hon Hai ecosystem—packaging and optical communications theme, with factories in China
訊芯-KY presents another form of KY stocks. According to public information, the company name of 訊芯-KY is 訊芯科技控股股份有限公司. Its foreign enterprise registration location is also the Cayman Islands. It was established on January 8, 2008, and listed in Taiwan on January 26, 2015. The company’s main business is packaging and testing, and the sale of system module packaging products and other various types of integrated circuit module packaging.
The company’s headquarters is located in the Cayman Islands, while its production facilities are in Zhongshan City, Guangdong, China. It is a specialized system module packaging and testing company. 訊芯-KY is a packaging and testing heavyweight under Hon Hai. It has transitioned from traditional assembly plants to a provider of system module (SiP) and high-speed optical fiber transceiver module packaging and testing services, and with deep cultivation in the optical communications field, it has become one of the few companies able to provide CPO (co-packaged optical) technology—a key technology viewed as solving AI hashrate bottlenecks and reducing energy consumption.
Comparing 世芯 and 訊芯, you will find that KY stocks are actually a “structure label,” not an “industry label.” Both are in semiconductors and both ride on AI themes, but one has headquarters and R&D in Taiwan, while the other’s factories are in China—and the behind-the-scenes shareholder structure is completely different. What those three letters “-KY” tell you is only this: “It is an offshore-registered company that is the first to be listed in Taiwan.”
Why do KY stocks make investors both attracted and worried?
The appeal and risk of KY stocks actually come from the same thing: they are offshore companies.
For companies, offshore holding structures help with cross-border operations, tax arrangements, equity design, and capital market listings. For Taiwan investors, KY stocks allow the Taiwan stock market to buy companies whose actual operations are not entirely in Taiwan, including China’s domestic demand, Southeast Asia manufacturing, U.S. technology companies, or multinational supply-chain companies.
But the problem is also here. When a company’s registration place, operating locations, factories, bank accounts, major customers, and subsidiaries are dispersed across different legal jurisdictions, it becomes more difficult for investors and accountants to audit financial statements, confirm where funds flow, and understand corporate governance than with typical Taiwan domestic companies.
That is also why, after several KY stocks ran into trouble in 2021, the market developed a strong shadow over the two letters “KY.” Cases such as 康友-KY, 凱羿-KY, 淘帝-KY, and 英瑞-KY made investors realize that if an offshore structure is paired with opaque information, abnormal holdings by directors and supervisors, unclear capital allocation, or difficulty in auditing financial statements, risks could be amplified.
When investing in KY stocks, what you need to look at is financial statement transparency
The biggest controversy with KY stocks has long been the difficulty of financial statements and auditing. Because companies are registered overseas, and their operating sites may also be in China, Southeast Asia, or other regions, auditors typically face higher difficulty than with ordinary Taiwan companies when it comes to on-site verification of inventories, cash, accounts receivable, customer transactions, and subsidiary fund flows.
To improve this issue, Taiwan’s regulators have strengthened oversight of KY companies in recent years. The Taiwan Stock Exchange has also optimized the “Financial Highlights” section of the Public Information Observation Platform; later it was renamed “Financial and Trading Information Highlights.” Investors can use the investment special section on the Public Information Observation Platform to look up relevant financial and trading warning information.
For retail investors, this tool is especially important. Before investing in KY stocks, you should not only look at revenue growth and EPS, but also whether they are flagged with financial or trading abnormal warning notices, whether directors and supervisors’ holdings are relatively low, whether major shareholders pledge a high proportion of shares, whether there have been large-scale disposals of holdings, and whether the cash, accounts receivable, and subsidiary fund flows shown in the financial statements are reasonable.
Do Taiwan stock dividends need to be taxed? KY stocks are offshore income
KY stocks also have another commonly misunderstood point: dividend taxation.
Many people think KY stock dividends are definitely tax-exempt, which is only true for half. For individual investors, KY stock dividends typically fall under offshore income and may involve the offshore income threshold under the Minimum Tax Regime. But if you invest in KY stocks under a company name, the situation is completely different.
The Ministry of Finance, Taipei National Taxation Bureau has clearly stated that for profit-making enterprises whose head office is within the Republic of China, if they receive dividends from investing in KY stocks, those dividends should be included in and taxed as profit-seeking enterprise income tax. The reason is that Article 42 of the Income Tax Act provides that dividends received from investing in other domestic profit-making enterprises are not included in income; however, that rule does not apply to KY companies because KY companies are foreign issuers.
The tax authority has also provided an example: a domestic company purchased KY stocks through a brokerage. In the 112 fiscal year, it received NT$550k in dividends but mistakenly believed that dividends received from buying Taiwan-listed stocks could all qualify for tax exemption under Article 42 of the Income Tax Act. As a result, it was found to have underreported—leading to not only additional taxes but also penalties.
In short, the tax results differ between individuals investing in KY stocks and companies investing in KY stocks. Individuals may face offshore income threshold and minimum tax regime issues, while companies need to pay attention to enterprise income tax return filings and cannot treat KY stock dividends as dividends from typical domestic companies.
This article 世芯-KY (3661), 訊芯-KY (6451): What does “Taiwan stock KY” mean? What should you watch for with dividends and buying/selling? First appeared on 鏈新聞 ABMedia.
