Press Releases

Fiscal 2000

October 26, 2000
Asahi Chemical Industry Co., Ltd.
Tongsuh Petrochemical Corp., Ltd.

Expansion of AN and NaCN Production Capacity at Tongsuh Petrochemical


Asahi Chemical Industry Co., Ltd. (Asahi Chemical; President, Kazumoto Yamamoto) and Tongsuh Petrochemical Corp., Ltd. (Tongsuh; President, Kyun-Chul Lee), its wholly owned subsidiary in South Korea, have decided to expand the production capacity of Tongsuh’s acrylonitrile (AN) plant, following their joint study on effective means of meeting the growing demand for AN in the Asian market. The expansion will involve the construction of a new AN production unit with an annual AN production capacity of 200,000 tons, in place of one current AN production line of 60,000 tons annual capacity. Construction is scheduled to begin in December 2000.

In conjunction with the AN capacity expansion, the Tongsuh facility for production of sodium cyanide (NaCN) will be expanded by 15,000 tons per year, for efficient utilization of byproduct hydrogen cyanide (HCN) from the AN production.

Background and circumstances of capacity expansion
The demand for AN in Japan and other parts of Asia is growing. The Asian demand currently represents about half of the worldwide AN demand of some 5,000,000 tons per year, and its growth is expected to continue. The AN operations of Asahi Chemical, with their strategic position in the rapidly growing Asian market, have developed in concert with a strong and growing AN demand, and in an overall program of timely restructuring of operations to effectively anticipate and meet the continuing rise in AN demand.

The total AN production capacity of the Asahi Group at present is 580,000 t/y, including 400,000 t/y from the Asahi Chemical plants at Mizushima and Kawasaki in Japan, 130,000 t/y from the Tongsuh plant in South Korea, and 50,000 t/y in capacity rights from Solutia Inc. of the U.S., but this will not be sufficient to meet the rising AN demand of the Asian region.

The Tongsuh facility holds the capability for an expansion that will meet this rising demand on a timely basis and will concurrently enhance the cost-competitive position of the AN operations, through a scrap-and-build expansion that will bring online a new production unit of 200,000 t/y capacity and a net increase of 140,000 t/y in the total production capacity of the Tongsuh facility. For the Asahi Group, this addition will mean an increase in its total AN production capacity to 720,000 t/y.

Essentials of expansion program
Capacity of new AN production unit: 200,000 t/y

  • To be accompanied by shutdown of an existing Tongsuh AN production line of 60,000 t/y capacity, thus bringing a net increase of 140,000 t/y and a total Tongsuh AN production capacity of 270,000 t/y.

  • NaCN capacity expansion: 15,000 t/y
  • To result in a total Tongsuh NaCN production capacity of 40,000 t/y.
  • To bring the total NaCN production capacity of the Asahi Group to 50,000 t/y after the completion of a new NaCN plant of 10,000 t/y capacity by Asahi Chemical at Kawasaki, Japan at the end of 2001.

  • Capital investment: Approx. ¥10,000 million total, for AN and NaCN facilities at Tongsuh.
    Location: Within Tongsuh’s Ulsan plant grounds.
    Schedule:  Groundbreaking, December 2000.
       Commercial start-up, March 2003.

    Corporate profile, Tongsuh Petrochemical Corp., Ltd.
    Capitalization 15,640 million Won (approx. ¥1,490 million)
    Shareholder Asahi Chemical Industry Co., Ltd. (100%)
    Operations Production (capacity in parentheses) and sale of:
      AN (130,000 t/y)
      NaCN (25,000 t/y)
      Acrylamide (10,000 t/y)
      EDTA (3,000 t/y)
    Representatives Kyun-Chul Lee, President
      Yoshinao Matsui, Vice President
    Location Head Office and Plant located at Ulsan, Kyongsangnam Do, Republic of Korea


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