Ar. 4.1 of the "Act on Nippon Telegraph and Telephone Corporation, etc." stipulates that the government must at all times hold more than one‑third of the total number of issued shares in the telecommunications company Nippon Telegraph and Telephone (NTT).

Japan has implemented foreign direct investment (FDI) screening mechanisms through the Foreign Exchange and Foreign Trade Act (Act No. 228 of 1949), supplemented by procedural regulations such as the Cabinet Order on Inward Direct Investment. Under this Act, foreign investors in "Designated Business Sectors" or "Core Business Sectors" are required to submit a prior notification to the relevant ministry. After reviewing the notification, the ministry may either approve, amend, or suspend the proposed investment.
According to the Cabinet Order on Inward Direct Investment, "Core Business Sectors" include industries where foreign investors (e.g., non-residents or foreign corporations) must file prior notification for direct investment, such as acquiring 1% or more of voting rights in a listed company or purchasing shares in an unlisted company. These sectors, considered highly sensitive, are generally not exempt from prior notification requirements due to national security concerns.
The List of Classifications of Listed Companies outlines core business sectors such as semiconductors and dual-use technologies, metal mining of significant mineral resources, cybersecurity-related services (e.g., network security monitoring and critical infrastructure protection), and telecommunications. Non-core business sectors include software, data processing services, and internet-use support businesses.

According to Arts. 8 and 184.11 of the Patent Act, the appointment of an agent is required if the applicant is not resident in Japan. Such an agent must be a resident of Japan or a firm registered to practice before the Japan Patent Office. In addition, pursuant to the Art. 184.4, translation of international applications is required into Japanese.

The Act on Consumer Protection in Electronic Commerce Transactions provides a comprehensive framework for consumer protection that also applies to online transactions.

Korea has signed but not ratified the United Nations (UN) Convention on the Use of Electronic Communications in International Contracts.

Korea has adopted national legislation based on or influenced by the United Nations Commission on International Trade Law (UNCITRAL) Model Law on Electronic Commerce.

Korea has not adopted national legislation based on or influenced by the United Nations Commission on International Trade Law (UNCITRAL) Model Law on Electronic Signatures.

Under Art. 31-2.1 of Personal Information Protection Act, a data handler without an address or business office in Korea must designate a local representative in writing if they meet certain criteria, such as revenue thresholds and the volume of personal data retained.

According to Art. 32 of the Act on Promotion of Information and Communications Network Utilization and Information Protection, foreign IT service providers without an office in Korea are required to appoint a local agent responsible for ensuring compliance with data privacy regulations.

Art. 11 of the "Act on the Prevention of Divulgence and Protection of Industrial Technology" provides that when a target institution holding national core technology developed with government research and development subsidies intends to export such technology to a foreign enterprise or any other external entity, whether through sale, transfer or another means, it must obtain prior approval from the Minister of Trade, Industry and Energy. In reviewing an application for approval, the Minister may grant approval after assessing the potential effects of the export on national security, the national economy and other relevant interests, consulting with the head of the competent central governmental administrative authority, and obtaining deliberation by the Committee. Where a target institution holding and managing national core technology that is not subject to this approval requirement seeks to export such technology, it must submit a prior report to the Minister of Trade, Industry and Energy. Upon receiving this report, the Minister shall examine the likely impact of the proposed export on national security and any other pertinent factors, and shall accept the report if the export is deemed not to pose a serious risk to national security and to comply with the Act. The term national core technology refers to technology designated under Art. 9, the overseas divulgence of which could have a materially adverse effect on national security or on the development of the national economy, owing to its significant technological and economic value in domestic and international markets or its capacity to generate substantial growth in related industries.

Since 2008, the Foreign Trade Act has required a license prior to the export of strategic goods. These items include dual-use items. Among them, electronics (category 3), computers (category 4), telecommunications and information security (category 5), and sensors and lasers (category 6) are relevant to digital goods. These categories are controlled by the Ministry of Trade, Investment, and Energy.

On 28 February 2022, the South Korean Ministry of Economy and Finance (MOEF) introduced export bans on "strategic goods" to Russia. These strategic goods are classified into two categories: "dual-use" and "military use." Among the dual-use items are ICT goods such as machines and apparatus primarily used for the manufacture of semiconductor boules or wafers, semiconductor devices, and electronic integrated circuits. Other items included in the ban are telephone sets, including those for cellular networks or other wireless networks, among others.

The Electrical Appliances Safety Control Act authorises the Korean Agency for Technology and Standards to develop safety certification schemes for the import of electronic appliances. The agency has created three certification schemes: KC Safety Certification, KC Safety Confirmation, and SDoC.
The requirements are the following:
- Type 1 products must go through a certification procedure that includes factory inspection (initial and regular) with mandatory product testing every two years in order to get KC Certification. Type 1 products include electric wire, cords, switches for electrical appliances, motor-oriented electric tools, breakers, insulated transformers, and lighting appliances;
- Type 2 products, which are considered less dangerous, must overcome certification procedures that include safety testing without factory inspection. Type 2 products include electric switches, electric appliances, audio and video electronic apparatus, lighting appliances, insulated transformers, and information technology equipment;
- Type 3 products are qualified to be clear of mandatory certification procedures with a showing of SDoC. Except for products that qualify for SDoC, the other two methods, which include local testing, could be burdensome. Type 3 products include fluorescent lamp starters, DC power supplies, and electric chargers connected to the electric appliances, as well as some electric appliances, audio and video electronic apparatus, and information technology equipment.

The Ministry of Science, ICT & Future Planning (MSIP) is an authority that conducts EMC and wireless communication certification. KC certification is issued by Korea’s National Radio Research Agency (RRA) and requires testing at an RRA-approved laboratory. There are three mandatory certification mechanisms for imported broadcasting and communications equipment to test the safety of radio waves (Art. 58-2):
- Certain equipment must receive a certification of conformity from the Ministry of Science, ICT and Future Planning after undergoing a test by a designated third-party laboratory. Such equipment includes wireless telephone alarm automatic receiver, radar equipment for ships, telephone, and modem;
- Equipment that is not subject to this certification may come in only with a showing of confirmation that verifies the compatibility after undergoing a test either by a designated third-party testing body or self-tests. The equipment that falls in this category includes Computing devices and peripherals, broadcasting set-top boxes, measuring instruments, industrial devices, and connectors.
- Equipment that is not subject to either of these schemes must have interim conformity after passing a test showing conformity with domestic or international standards. Equipment that is newly developed but whose conformity assessment criteria have yet to be developed falls in this category.
Korea has entered into a mutual recognition arrangement with the United States, Canada, EU, Vietnam, and Chile. However, except for Canada, the import of broadcasting and communications equipment from other countries must still receive certification of conformity from the South Korean government, even if a conformity test has been conducted in the exporting countries.

Pursuant to Art. 4 of the National Intelligence Service Korea Act and Art. 56 of the Electronic Government Act, the National Intelligence Service (NIS) imposes security verification requirements on network equipment and cyber-security software in government procurement. Generally, they may satisfy the requirement by showing that the products are certified at a Common Criteria Recognition Arrangement (CCRA) accredited lab outside of Korea. However, certain network equipment must undergo an additional security verification process. Furthermore, the Common Criteria (CC) certification may not be sufficient for two reasons. First, NIS may substitute the CC certification with other certification mechanisms that were internally developed (e.g., GS Certification). Second, NIS may reject a CC certification when it deems that the certification does not cover particular functions of the product that the government entity needs.