On April 27, 2017, the United States international trade Commission voted to make the fourth anti-dumping sunset review of the import of welded stainless steel pipes from the Taiwan region and south Korea ( welded ASTM a - 312 stainless steel pipe ) to the certainty of damage: if the existing anti-dumping measures against the products were cancelled, the material damage to the domestic industry of the United States will continue or occur again within a reasonable foreseeable period. According to the final results, the United States will continue to maintain anti-dumping measures against imports of stainless steel tubing from Taiwan and south Korea. In the ruling, five members voted for the affirmative vote. 

Review
On December 30, 1992, the United States department of commerce formally began levying anti-dumping duties on ASTM a - 312 stainless steel pipes imported from Taiwan and south Korea. 
On February 11, 1994, the United States department of commerce amended the anti-dumping duty on products in Taiwan. 
On July 1, 1999, the United States department of commerce launched the first anti-dumping sunset review on the products of Taiwan region and south Korea. 
On February 4, 2000, the United States department of commerce made an anti - dumping rapid sunset review on Taiwan and south Korea products. On October 16, 2000, the United States department of commerce first extended the anti-dumping duty on products in Taiwan and south Korea. 
On September 1, 2005, the United States department of commerce launched the second anti-dumping sunset review on the products of Taiwan region and south Korea.

On August 28, 2006, the United States department of commerce extended the second anti-dumping duty on products in Taiwan and south Korea. 
On July 1, 2011, the United States department of commerce launched the third anti-dumping sunset review on products involving Taiwan and south Korea. On November 2, 2011, the United States department of commerce made a third anti - dumping rapid sunset review to the case. On December 19, 2011, the United States department of commerce extended the third anti-dumping duty on products in Taiwan and south Korea. 
On November 1, 2016, the United States department of commerce launched the fourth anti-dumping sunset review on products involving Taiwan and south Korea. 
On March 7, 2017, the United States department of commerce issued a notice on the fourth anti-dumping rapid sunset review on the import of ASTM a - 312 welded stainless steel pipes from Taiwan and south Korea.