| 1952 | After Japan and the United States have signed the peace treaty, German staff and management of SECO and Leybold are allowed to return to Japan. |
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| 1961 | SECO continues to profit from Japan’s economic upswing, and the country in the Far East becomes West Germany’s biggest trading partner in Asia. |
| 1962 | Having been presented with an honorary doctorate from Hamburg University in recognition of his services towards German-Japanese relations, Dr.h.c. Kurt Meissner becomes founding president of the German Chamber of Industry and Commerce in Japan. |
| 1968 | As first German company, SECO uses the newly standardized shipping containers to export goods from Hamburg to Japan. |
| 1968 | SECO signs business agreement with gear grinding machine maker, expanding its portfolio from mainly chemicals and consumables. |
| 1972 | Transition from black and white to colored photo paper: SECO chartered freight cargo airliner DC8F to deliver urgently required paper to Japan. |