Company history

In April 1881 E. H. Hunter, a British trader living in Osaka, opened the Osaka Iron Works on the right bank of the Aji River. Alongside the state yards at Yokosuka and Nagasaki, private shipbuilding was one of the few places where modern industry took root in early Meiji Japan, and this one was started by a foreigner: about a hectare of ground, wooden buildings, some two hundred workers, and — unusually for the time — imported machine tools that made its name. The first ship it built was christened Hatsumaru, and repair work sat next to land-based machinery from the start. In 1887 the founder’s son, Handa Ryutaro, rebuilt the works for iron hulls and put up what is said to be Japan’s first stone dock; the Sakurajima yard opened in 1900, and after the shipbuilding subsidy laws that followed the Sino-Japanese War the firm bought the Innoshima dock in the Inland Sea in 1911. By the end of Meiji it was known abroad as one of Japan’s three great shipyards.

What it did not have was an owner who meant to keep it. Incorporated in 1914 as Osaka Iron Works Ltd., it passed the same year to Yamaoka Juntaro of the shipping line Osaka Shosen; at the 1916 capital increase Kuhara Mining took a large block, and Handa sold his entire holding and left the business his father had founded. The yard network kept growing through the First World War shipping boom — the Chikko works bought from Harada Shipbuilding in 1920, the Hikoshima dock in 1924 — even as the postwar slump pushed Kuhara into trouble and Osaka Shosen withdrew the directors it had seconded.

The end of that churn set the company’s name for the next eighty-one years. In May 1934 Nihon Sangyo — the Nissan konzern under Aikawa Yoshisuke — bought every share; in February 1936 it handed the whole stake over to Hitachi, Ltd. A shipyard founded by an Englishman had been absorbed into the core of Japanese capital, and the shareholder’s name was about to become its own.

In March 1943, with shipbuilding designated an industry of national importance, the company took its parent’s name and became Hitachi Zosen — sixty-two years of Osaka Iron Works ending in a renaming. The war then rearranged its yards from outside: it absorbed the Mukaishima dock and Harada Shipbuilding that September, surrendered the Hikoshima works to Mitsubishi Heavy Industries in December at the navy’s request, opened the Kanagawa yard in 1944, and bought a timber mill the same year. Nothing in that sequence was chosen freely, and the shape it left behind was the shape the company took into the postwar years.

Defeat rearranged the ownership just as bluntly. In January 1947 the zaibatsu dissolution moved Hitachi’s entire holding to the Holding Company Liquidation Commission; in December 1948 the shares were released to the public, and in May 1949 the company listed in Osaka and Tokyo. The capital tie to Hitachi was severed — but the name Hitachi Zosen stayed. The gap between signboard and substance that would take until 2024 to close opens right here, in 1949. A technical research laboratory followed in Konohana-ku, Osaka, in 1950.

Then came the boom. Japanese yards rose to the top of the world market through the late 1950s and 1960s, and Hitachi Zosen rose with them by betting on size: a $41.7M (¥15bn) mammoth dock at a new works in Sakai, decided in 1964 and in operation from 1965, with shipbuilding pulled out of Sakurajima — the yard the company had been founded around — to pay for the concentration. Around it the group thickened: Fukui Machinery in 1964, the absorption of Maizuru Heavy Industries in 1971, and in 1972 the merger that created Naikai Zosen, still an equity-method affiliate today.

The second pillar was planted long before the first one fell. In December 1977 Hitachi Zosen brought Ataka Kogyo, a water-treatment plant builder, into the group, and from there environmental and water plants sat beside shipbuilding on the books. It was slow, unglamorous work — six wholly owned subsidiaries absorbed in 1989, the Ibaraki works opened in 1991, an environmental development centre set up inside the Maizuru yard in 1996 — but it was the only part of the company that would still be growing twenty years later.

Meanwhile the yards were being cut down. Korean and later Chinese builders took the low-price orders, Japanese capacity was restructured industry-wide, and Hitachi Zosen ran two rounds of rationalization. The first began with 1,260 indirect staff, more than a third of them by simply not replacing leavers and the rest by secondment to affiliates, with no dismissals at all — a company that had governed itself on labour–management consultation, and that decided the order of the cuts accordingly. The second plan, in 1986, reached the yard towns of Innoshima and Mukaishima, where employment eventually fell to roughly a third of its peak.

The founding trade went last. Sakurajima closed in December 1997; the Ariake engine works was spun off in 1999; and in October 2002 the shipbuilding business itself was transferred to Universal Shipbuilding, a joint venture with NKK that is now Japan Marine United. One hundred and twenty-one years after Hunter opened the Aji River works, and fifty-nine years after the renaming, the word Zosen — shipbuilding — no longer described anything the company did.

Life after the founding trade was, at first, simply hard. Rebuilt around environmental plants, industrial machinery, marine engines and disaster-prevention work, the company posted a net loss of $249.4M (¥29bn) in the year to March 2006 on sales of $2.9B (¥334bn) — the pain of swapping out the contents of a business while keeping its name, written into the accounts. Under Furukawa Minoru the retreat continued (the Kanagawa works closed in 2009, ten wholly owned subsidiaries were absorbed the same year), and under Tanisho Takashi from 2012 revenue climbed back from $3.6B (¥287bn) in the year to March 2011 to $3.6B (¥387bn) five years later, on thin but steady operating profits.

What made the recovery durable was bought abroad. Domestic waste-to-energy is hostage to municipal ordering cycles — in the year to March 2010, 84% of sales were to Japan — so the company went looking for other buyers for the same technology. It took full ownership of Switzerland’s AE&E Inova (now Kanadevia Inova) in 2014, along with NAC International, and absorbed Ataka Daiki to consolidate water treatment; Australia’s Osmoflo followed in 2018 for desalination, and Germany’s Steinmüller Babcock Environment in 2022 — bought not by the parent but by Inova itself, the acquired company having become the acquirer. Under Mino Sadao, president from 2019, the European business became one of the group’s main earnings pillars.

The last of the old company was sold or split off as this went on: the Kashiwa works closed in 2021, the shield tunnelling machine business went into a joint company with Kawasaki Heavy Industries, and marine engines were carved out in 2023. In October 2024 the name followed the business at last. Kanadevia — coined from kanaderu, to play music, and the Latin via, a road — replaced eighty-one years of Hitachi Zosen; chairman Mino and president Kuwahara Toru presented it not as a change of signboard but as a declaration that the change underneath was finished.