A shipping line formerly part of Weyerhaeuser Co. will open its new Puyallup headquarters next Wednesday on South Hill.

Westwood Shipping Lines is moving to a former computer chip plant now converted to an office and research park, the South Hill Business & Technology Center. As part of Weyerhaeuser, the shipping line’s headquarters were in Federal Way.

Weyerhaeuser sold the shipping company to J-WesCo, a subsidiary of Sumitomo Warehouse in Japan. Sumitomo paid $53 million for the shipping line.

The shipping company has a fleet of seven ships and revenues of $246 million last year.

Some 70 workers will be employed at the new office. That office was once a computer chip plant built by Fairchild Semiconductor Corp. National Semiconductor bought the plant from Fairchild in 1990 and then subsequently sold it to Matsushita Electric of Japan.

Benaroya Co. bought the unused plant several years ago.