Tokyo HOSO Co., Ltd.

Tokyo HOSO Co., Ltd. (東京鋪装工業株式会社) is a Japanese company based in Tokyo that works in road paving and construction, combining a construction business (建設事業) with a products business (製品事業) and production engineering (生産技術). Its corporate philosophy states that it seeks to create a richer living environment through road building, under the slogan TRY – TRUST – TOGETHER, which the company glosses as winning trust and making efforts together as one team. Its stated vision is the "三方良し" (good for seller, good for buyer, good for society) principle, and its principles emphasize safety-first culture with partner companies, technology development matched to social needs, a stable earnings base, and an open corporate culture. The company's public-facing activity centers on pavement technology. It promotes ICT construction (ＩＣＴ施工), in which the finishing height of earthworks machinery is automatically controlled by machine control, removing the need for stakes and height strings and improving safety and labor savings. It also markets semi-flexible pavement (半たわみ性舗装), a system in which a cement milk is penetrated into the voids of an open-graded asphalt mixture with a void ratio of roughly 22%–26%; using its high-strength ultra-rapid-hardening premix material "Diamond Twin High Strength" (ダイヤツイン高強度) allows a high-strength type of semi-flexible pavement to be installed. In October 2025 the company announced that it had jointly developed and would sell a low-carbon semi-flexible pavement material, "HOSO Ace eco" (ホソーエースeco), with MU Matex Co., Ltd., reducing CO2 emissions derived from raw-material manufacturing by about 40%. The company also publishes corporate information including its company outline and history, corporate philosophy, officer introductions, organization chart, office guide, and quality, environment and occupational safety and health policies, and it maintains recruitment pages for new graduates and mid-career hires. In 2026 it disclosed a ransomware attack and issued a final report on the incident. The company is described in Wikidata simply as a company in Tokyo, Japan.

Tokyo HOSO Co., Ltd. (東京鋪装工業株式会社) is a Tokyo-based company operating in road paving and construction. Publicly available evidence describes it as a company in Tokyo, Japan, and its own website presents a business structure organized around a construction business (建設事業), a products business (製品事業) and production engineering (生産技術). The company's corporate philosophy is expressed as creating a richer living environment through road building, with the slogan TRY – TRUST – TOGETHER, explained as winning trust and striving together as one. Its vision invokes the "三方良し" principle — good for the seller, good for the buyer and good for society — and its action principles commit the company to building a safety- and environment-first culture together with partner companies, honing technologies to match social needs, establishing a stable earnings base, and fostering an open corporate culture in which each employee thinks and acts. A central thread of the company's public identity is pavement technology. It promotes ICT construction (ＩＣＴ施工), in which machine control automatically governs the finishing height of earthworks machinery, eliminating the need for batter boards and stakes, saving labor in height checking with string lines, reducing work around construction machinery and improving safety. It also offers semi-flexible pavement (半たわみ性舗装), a paving type in which cement milk is penetrated into the voids of an open-graded asphalt mixture with a void ratio of about 22%–26%. By penetrating its high-strength ultra-rapid-hardening semi-flexible pavement premix material "Diamond Twin High Strength" (ダイヤツイン高強度), the company can install a high-strength type of semi-flexible pavement. On 17 October 2025 the company announced that it had jointly developed and would sell a low-carbon semi-flexible pavement material, "HOSO Ace eco" (ホソーエースeco), with MU Matex Co., Ltd., reducing CO2 emissions derived from raw-material manufacturing by approximately 40%. This marked a step toward lower-carbon pavement products. The company maintains corporate information pages covering its greeting, company outline and history, corporate philosophy, officer introductions, organization chart, office guide, quality/environment/occupational safety and health policies, electronic public notices, and SDG initiatives, alongside recruitment pages for new graduates and mid-career hires. In 2026 the company disclosed a ransomware attack, publishing a notice on 12 May 2026 and a final report on 31 July 2026. The company's own materials do not, in the supplied evidence, state a founding year, founder, ownership structure or listing status; Wikidata describes it only as a company in Tokyo, Japan.

• Announced joint development and sale of the low-carbon semi-flexible pavement material "HOSO Ace eco" with MU Matex Co., Ltd., reducing raw-material-manufacturing-derived CO2 emissions by about 40%.

• Published a notice regarding damage from a ransomware attack.

• Published a final report on the ransomware attack damage.

A technology-driven Japanese road paving and construction-materials company positioning itself around advanced pavement technologies, safety, environmental performance and social contribution.

• Diamond Twin High Strength (ダイヤツイン高強度)

  A high-strength ultra-rapid-hardening premix material for semi-flexible pavement; penetrating it into the voids of an open-graded asphalt mixture enables a high-strength type of semi-flexible pavement.

• HOSO Ace eco (ホソーエースeco)

  A low-carbon semi-flexible pavement material jointly developed and sold with MU Matex Co., Ltd., reducing raw-material-manufacturing-derived CO2 emissions by about 40%.

• ICT construction (ＩＣＴ施工)

  A construction method in which machine control automatically governs the finishing height of earthworks machinery, removing the need for batter boards and stakes, saving labor in height checking and improving safety.

• Semi-flexible pavement (半たわみ性舗装)

  A pavement type in which cement milk is penetrated into the voids of an open-graded asphalt mixture with a void ratio of about 22%–26%.

1. 1東京鋪装工業株式会社 公式サイトtokyohoso.co.jp
2. 2企業情報 | 東京鋪装工業株式会社tokyohoso.co.jp
3. 3企業理念 | 東京鋪装工業株式会社tokyohoso.co.jp
4. 4Tokyo HOSO Co.ltd. (Japan) - Wikidatawikidata.org