Shin-Etsu Chemical - Company History

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Financial history 1952–2026 — revenue, cost structure, balance sheet, cash flow and key ratios, year by year →

Founded 1926
Founder Koshi Jusaburo 越寿三郎 · Noguchi Shitagau 野口遵
Founding location 長野県長野市
Core business at founding Calcium cyanamide and carbide made with surplus hydroelectric power
Listed 1949
President Saito Yasuhiko President since 2016 (age 70, as of 2026)
Current priority Capacity investment · Shareholder returns Adding PVC and silicon wafer capacity, and buying back shares
Founding
In September 1926 Koshi Jusaburo of Shinano Electric and Noguchi Shitagau of Nihon Chisso Hiryo joined forces to found Shin-Etsu Nitrogenous Fertiliser with capital of ¥5 million. The plan was to turn the hydroelectric power then running surplus in Nagano prefecture into calcium cyanamide, a fertiliser, and a plant was built at Naoetsu in Niigata prefecture. Ruinous competition and the collapse of rice prices in the farming districts forced operations to stop in December 1931, and the plant was closed in February the following year; the single-business model had run into a wall within little more than a decade. Kosaka Junzo, who became president in May 1931, unified the capital structure, rebuilt the company and restarted the works in October 1937. In 1940, with products outside fertiliser growing in weight, the name was changed to Shin-Etsu Chemical. In January 1953 the company signed a technology alliance with General Electric of the United States and began volume production of silicone.
The Decision
For fifty years the company has added capacity in downturns rather than letting its operating rate fall. Shintech, the PVC subsidiary set up in Texas in 1973, started thirteenth of twenty-one American producers. In 1976 president Odagiri Shintaro overrode the opposition of the board and exercised a right of first refusal to take Shintech wholly in hand; the consent of a joint-venture partner was no longer needed, and expansion in a recession could be decided alone. Kanagawa Chihiro, who took the presidency in August 1990, extended the method he had tested for twelve years at Shintech — hold the operating rate high and keep adding capacity rather than cut output — to PVC, semiconductor silicon and silicone alike. Investment was funded from the company's own cash, sized at roughly five years of cash flow, and no borrowing was carried. In 2016 he handed the presidency to Saito Yasuhiko, who had run Shintech for five and a half years.
Today
In the year to March 2026 electronics materials passed infrastructure materials in revenue, and the gap in profit was more than twofold. Of consolidated revenue of $16.3B (¥2.57tn), electronics materials accounted for $6.4B (¥1.02tn) and infrastructure materials, which includes PVC, for $6.2B (¥981bn); segment profit was $2.2B (¥345bn) against $1.0B (¥165bn). A falling PVC market cut the latter by more than four-tenths from $1.9B (¥291bn) the year before. Even so the group operating margin held at 24.7 per cent. Taking Shin-Etsu Handotai wholly in hand in 1979, by exercising a right of first refusal when the joint-venture partner asked to withdraw, is what built the structure in which all of the profit from silicon wafers stays inside the group.
Competition
Among makers handling the same commodity products, what divided the margins was whether they stopped adding capacity. In PVC, dear raw materials and cheap product make ruinous competition the normal state, and there is a path like Tosoh's of polishing domestic chlor-alkali and PVC and staying with them. In semiconductor silicon, SUMCO closed its Amagasaki and Ikuno plants in 2012 and withdrew from the solar-cell market. Shin-Etsu Chemical went on adding capacity in the same conditions: Shintech, using the rock salt and natural gas of Texas, brought vinyl chloride monomer in-house in 2008 and ethylene in 2020, and reached an annual capacity of 3.64 million tonnes in 2024. Cutting raw-material prices loose from outside markets is what produced the consolidated operating margin of 35.5 per cent in the year to March 2023. That figure, though, rests on the premise that natural gas in the United States stays cheap.

Timeline

1926–1972A fertiliser company sheds its skin: the silicone entry and the making of a materials maker

  1. 1926Shin-Etsu Nitrogenous Fertiliser founded to turn surplus electricity into chemicals
  2. 1927Calcium cyanamide production begins at the Naoetsu works
  3. 1931Naoetsu suspended; Kosaka Junzo becomes president and unifies the capital
  4. 1938Isobe works built; manganese metal production begins
  5. 1940Renamed Shin-Etsu Chemical
  6. 1945Daido Chemical Industry absorbed, adding the Takefu works
  7. 1949Listed on the Tokyo Stock Exchange
  8. 1953Out of the fertiliser trade: the first silicone business in Japan
  9. 1957PVC production begins at Naoetsu
  10. 1960High-purity Super Silicon production begins at Isobe; Shin-Etsu Polymer founded
  11. 1962Cellulose derivatives (Metolose) production begins at Naoetsu
  12. 1967Shin-Etsu Handotai founded; Shin-Etsu Petrochemical absorbed

1973–1989Shintech, and two buyouts under Odagiri

  1. 1973Rare earth magnet production begins at Takefu; Shintech founded in Texas
  2. 1974The Freeport plant starts at 100,000 tonnes a year; Odagiri Shintaro becomes president
  3. 1976Shintech taken wholly in hand over the opposition of the board
  4. 1978Kanagawa Chihiro becomes president of Shintech
  5. 1979The Dow Corning venture is dissolved and Shin-Etsu Handotai becomes wholly owned
  6. 1983Preform production for optical fibre begins at Isobe
  7. 1989Contrarian expansion through the cycle sets up the earnings of the 1990s

1990–2024Kanagawa Chihiro across the whole company: vertical integration completed, high margins made permanent

  1. 1990Kanagawa Chihiro becomes president; run flat out, sell everything becomes company policy
  2. 1990Shintech becomes the largest PVC producer in the United States at 900,000 tonnes a year
  3. 1992Photoresist production begins at Naoetsu
  4. 1999A PVC joint-venture business is acquired
  5. 2001Shintech passes 2 million tonnes a year and becomes the largest PVC producer in the world
  6. 2003The SE Tylose cellulose business is bought from Clariant AG
  7. 2005Mask blank production begins at Naoetsu
  8. 2010Kanagawa becomes chairman; Mori Shunzo (森俊三) becomes president
  9. 2016Saito Yasuhiko becomes president
  10. 2020Fully integrated production from rock salt to PVC is completed
  11. 2023Chairman Kanagawa Chihiro dies at 96
  12. 2024Plaquemine lifts PVC capacity to 3.64m tonnes; Mimasu Semiconductor taken wholly in hand

Founding Story

1926–1972A fertiliser company sheds its skin: the silicone entry and the making of a materials maker

Shin-Etsu spent its first half-century turning a single-product fertiliser business into a materials company. Calcium cyanamide came close to killing it within five years of its founding, and the recovery led by the Kosaka family was paid for by stepping into one adjacent chemistry after another — magnesium metal and metallic silicon, then silicone under a General Electric licence, then PVC and semiconductor silicon. Sales of $7.6M (¥3bn) in the year to May 1952 had become $142.4M (¥44bn) two decades later, and every one of those new lines had been entered late, built on the chemistry of the line before it.

From ruinous competition in calcium cyanamide to a rescue by the Kosaka family

In September 1926 Koshi Jusaburo (越寿三郎) of Shinano Electric and Noguchi Shitagau (野口遵) of Nihon Chisso Hiryo, the Japan Nitrogenous Fertiliser company, joined forces to incorporate Shin-Etsu Nitrogenous Fertiliser Co. with capital of ¥5 million. The starting idea was a business that would convert the cheap hydroelectric power then running surplus in Nagano prefecture into a fertiliser, calcium cyanamide. The division of labour was that Shinano Electric brought the cheap surplus power and Nihon Chisso Hiryo the manufacturing process, and on that basis a plant was built at Naoetsu in Niigata prefecture, on the site of a former Nippon Oil refinery. Nihon Chisso Hiryo dismantled production equipment at its Kagami and Minamata works and moved it to Naoetsu to bring the plant up[1]. Carbide, calcium cyanamide and graphite electrodes went into production in October 1927. Almost at once, however, the calcium cyanamide industry fell into ruinous overcapacity, and as the Depression reached Japan and rice prices collapsed in the farming districts, fertiliser demand fell back as well[2]. The company halted operations at the Naoetsu works in December 1931 and closed the plant outright in February 1932[3], facing a threat to its survival only a few years after it had been founded.

In the middle of that distress Kosaka Junzo (小坂順造), president of Nagano Electric, took over Koshi Jusaburo's shares and became president in May 1931[4]. He set to work on the rebuild under the company motto shushin ijo (衆心維城) — the united hearts of the many are a castle wall — unified the capital structure, and turned policy towards stabilising the business. The turning point of the rebuild was the restart of the Naoetsu works in October 1937[5], and from then on the company's finances moved towards stability. The Kosaka family would go on to lead the company for some forty years, laying the groundwork for shedding a constitution that depended on fertiliser alone. By 1940 products outside fertiliser, such as magnesium metal and metallic silicon, had grown in weight, and the name was changed to Shin-Etsu Chemical, which it still carries. In May 1945 Daido Chemical Industry was absorbed and became the Takefu works[6], adding a production base for calcium cyanamide and ferroalloys. Out of the lesson that the single-business model of its founding had run into a wall within little more than a decade, the posture of pursuing diversification and capital discipline together was carved into the company as its DNA.

The beginning of a chain: silicone, PVC and semiconductor silicon

In January 1953 Shin-Etsu Chemical signed a technology contract with General Electric of the United States for the manufacture of silicone, and that April began the first volume production of silicone in Japan. Kosaka Tokusaburo (小坂徳三郎), then vice-president, declared that the silicone business must not be left as a stunted bonsai but grown into a magnificent tree, and led the structural shift away from being a fertiliser maker. The first issue of the company newsletter carried a letter from an employee saying that the label of fertiliser shop would never wear off — this was a period in which management and the shop floor alike shared a sense of crisis. Silicone had properties that other materials could not easily substitute for — heat resistance, electrical insulation, water repellency — and as a base material whose applications could be extended into semiconductors, construction and medicine, it held the possibility of changing the company's business structure.

In 1957 the company entered the polyvinyl chloride business as the thirteenth and last domestic producer, and differentiated itself on productivity through a proprietary non-scale polymerisation process. In 1960 it began making high-purity semiconductor silicon, branded Super Silicon, from a by-product of the silicone plant, and set foot in semiconductor materials. In 1967 it founded Shin-Etsu Handotai as a joint venture with Dow Corning[7], consolidating its position as a supplier of the silicon wafer, the base material of semiconductor devices. The growth pattern of widening the technically adjacent territory one step at a time — from fertiliser to silicone, PVC and semiconductor silicon — took root as the company's culture. Kosaka Tokusaburo looked back years later on the internal mood at the time of the silicone entry: even after commercialisation, for five years it was in a state where it could hardly be called a product, let alone contribute to sales[8]. Entering an adjacent field was a disciplined choice made in the knowledge that a long unprofitable stretch would have to be borne.

1973–1989Shintech, and two buyouts under Odagiri

The venture that opened this era as a fifty-fifty partnership in Texas closed it wholly owned, and so did the silicon wafer business. Odagiri Shintaro exercised a right of first refusal twice — over Shintech in 1976 and over Shin-Etsu Handotai in 1979 — putting both of the company's future profit engines under sole control, which is what allowed Kanagawa Chihiro to expand capacity in the middle of downturns rather than cut it. Sales in the year to May 1973 were $194.8M (¥53bn), and the structure built in these years is what carried the company through the decades that followed.

From a Texas PVC joint venture to the exercise of a first-refusal right

In July 1973 Shin-Etsu Chemical established Shintech as an equal-equity venture with Robintech, an American PVC pipe maker[9], and started a US PVC business based in Houston, Texas. Kanagawa Chihiro (金川千尋), who had come from Mitsui & Co., led the planning of the project; it was an overseas move built on a fundamental advantage in raw-material cost — the cheap rock salt and natural gas that Texas produces in abundance. In October 1974 the Freeport plant began operating at 100,000 tonnes a year, but its starting position in the market was a hard one: thirteenth among twenty-one US PVC producers. How a late and small player was to survive in the huge American market was a question put to management from the very beginning. Kanagawa's answer was vertical integration, producing everything from rock salt through to PVC resin in one chain, and maintaining a high operating rate that did not follow the business cycle.

In 1976, when the joint-venture partner Robintech ran into financial difficulty, president Odagiri Shintaro (小田切新太郎) overrode the opposition of a majority of the board and decided to acquire all of Robintech's shares — making Shintech a 100 per cent subsidiary[10]. What made this decision legally possible was the elegance of Odagiri's own design: he had written a right of first refusal into the original joint-venture contract in advance[11], and that contract structure, which had looked ahead to the possibility of running the business alone, took effect at this moment. Odagiri had held the view consistently since the joint-venture years that Kanagawa's strategy could not be executed unless the business switched to sole management. The buyout was not a rescue but a move that put in place the precondition for contrarian management.

Taking Shin-Etsu Handotai wholly in hand to hold every investment decision

Odagiri Shintaro applied the same wholly-owning method to Shin-Etsu Handotai. When Dow Corning proposed dissolving the joint venture in 1979 — the company had been founded with Dow Corning in 1967 — he exercised the right of first refusal and made it a 100 per cent subsidiary[12]. With both of the group's great earnings sources, Shintech and Shin-Etsu Handotai, wholly owned, all of the profit the two generated accrued to the group, and a structure was in place in which capital-investment decisions could be taken on the company's own authority alone. In the joint-venture years every capacity addition had required the consent of an overseas partner, which constrained agile investment; after the buyouts the structure changed to one in which expansion could be decided on Kanagawa's judgement alone.

The policy of not cutting output in a downturn but pressing on with active investment in more capacity — run flat out, sell everything — was a contrarian strategy that only became executable because of this freedom of management. As long as a joint-venture partner's consent had to be sought, an expansion investment in a recession would never clear the internal approval process. Odagiri was the figure who bridged the founding family and Kanagawa, and who designed Shin-Etsu Chemical's turning point from the side of its capital structure. A change in the legal framework — the buyout — provided the foundation that made a management philosophy realisable. The company's dramatic expansion of earnings and its rise within the industry from the late 1980s onwards rest on a structural precondition that could not have existed without the series of decisions Odagiri took at the time.

1990–2024Kanagawa Chihiro across the whole company: vertical integration completed, high margins made permanent

In August 1990 a mid-career hire who had spent twelve years running a subsidiary in Texas took the presidency of the parent, and the operating rule proved there — run flat out, sell everything — was carried into PVC, semiconductor silicon and silicone alike. Consolidated sales of $2.9B (¥425bn) in the year to March 1990 had reached $15.9B (¥2.41tn) by the year to March 2024, and by the end of the era the raw-material chain ran unbroken from Texas natural gas to finished resin.

Run flat out, sell everything: an operating rule raised into a philosophy for the whole company

In August 1990 Kanagawa Chihiro formally became president of Shin-Etsu Chemical. A manager with a background unusual for a major Japanese chemical maker — a mid-career hire from Mitsui & Co. who had directly run Shintech in the United States for twelve years — took the chief executive's chair of the whole group. Kanagawa's watchword was jozai senjo (常在戦場), always as if on the battlefield, and he extended the management philosophy proved at Shintech — run flat out, sell everything — beyond the PVC business to every business area, semiconductor silicon and silicone included. Do not cut output in a downturn; hold the operating rate high, and widen your own share precisely in the period when competitors are being forced to shrink production. He repeated that contrarian cycle under thorough discipline.

Consolidated sales expanded to roughly three times their level when he took the presidency, and the consolidated operating margin reached a level above 30 per cent. Market capitalisation grew about twenty-two-fold from the time of his appointment, the largest increase in market value of any listed company's chief executive during the long stagnation of the Japanese economy known as the lost thirty years. Shintech became the largest PVC producer in the United States in 1990, and in 2001 took the position of the largest PVC producer in the world. The accumulation of market position over this period, which could not have come about without Kanagawa's consistent management discipline, counts as one of the greatest post-war success stories in the Japanese chemical industry.

Completing vertical integration, and the succession after Kanagawa

Shintech brought its raw materials in-house one step at a time, and in 2008 began integrated production at Plaquemine, Louisiana, running from the electrolysis of salt through to vinyl chloride monomer. In 2020 it started an ethylene plant, building a fully integrated production system from natural gas. The idea of vertical integration — using the geographical advantage of Texas rock salt and natural gas to insulate raw-material costs from outside markets — was the final form of the design Kanagawa had pursued since Shintech was founded. In the year to March 2023 the company recorded a consolidated operating margin of 35.5 per cent, a level without parallel for a Japanese chemical maker. An integrated system running from raw material to finished product produces a high tolerance for price swings, and at the same time gives the company a structural advantage that competitors find hard to imitate.

In January 2023 Kanagawa Chihiro died at the age of 96, ending the era of a single manager who had led Shin-Etsu Chemical for forty-five years, from his appointment as president of Shintech in 1978. In 2024 the new Plaquemine plant came into full operation and annual PVC capacity reached 3.64 million tonnes, and in November of that year the company took Mimasu Semiconductor Industry wholly in hand for about $448.8M (¥68bn), strengthening the vertical integration of semiconductor silicon by another notch. The two disciplines Kanagawa built with his own hands over fifty years — run flat out, sell everything, and operate free of debt — were handed on to a management team led by his successor as president, Saito Yasuhiko (斉藤恭彦). The structure in which the business continues to be run under the same philosophy even after the founder-figure has gone was put in place by preparations made while Kanagawa was still alive.

Read the full history in Japanese →

Notes

  1. Corporate Histories: A Century of Meiji, Keizai Shunju-sha, 1968↩
  2. Corporate Histories: A Century of Meiji, Keizai Shunju-sha, 1968↩
  3. Corporate Histories: A Century of Meiji, Keizai Shunju-sha, 1968↩
  4. Corporate Histories: A Century of Meiji, Keizai Shunju-sha, 1968↩
  5. Corporate Histories: A Century of Meiji, Keizai Shunju-sha, 1968↩
  6. Corporate Histories: A Century of Meiji, Keizai Shunju-sha, 1968↩
  7. Shin-Etsu Chemical, 100-Year History; Shin-Etsu Chemical annual securities report↩
  8. Nikkei Business, 22 September 1980↩
  9. Shin-Etsu Chemical, 100-Year History; Shin-Etsu Chemical annual securities report↩
  10. Shin-Etsu Chemical, 100-Year History; Shin-Etsu Chemical annual securities report↩
  11. Shin-Etsu Chemical, 100-Year History; Shin-Etsu Chemical annual securities report↩
  12. Shin-Etsu Chemical, 100-Year History; Shin-Etsu Chemical annual securities report↩

References & sources

  1. Keizai Jidai, May 1964, on Shin-Etsu Chemical's advance during the chemical-industry boom.
  2. Corporate Histories: A Century of Meiji, Keizai Shunju-sha (1968), the Shin-Etsu Chemical entry.
  3. Nikkei Business (Nikkei-McGraw-Hill / Nikkei BP): 22 September 1980, on the company's diverse product range, including Kosaka Tokusaburo on the silicone years; 7 December 1992, on rationalisation and the rise to first place in world PVC.
  4. A Conspectus of Japanese Company Histories, Toyo Keizai Inc. (1995).
  5. Shin-Etsu Chemical Co., Ltd. (annual securities reports), the source of consolidated figures. Earlier revenue is taken from the Conspectus of Listed Companies (1956 edition), the Company Yearbook (1976 edition) and the Toyo Keizai Company Quarterly.

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