On November 15, 2010, the New Zealand authorities initiated an anti-dumping investigation on imports of wire nails of iron or steel, bright (plain) and galvanised (coated), from China.
The products subject to investigation are classified under the following HS code: 7317.0009.
The complaint was lodged on October 7, 2010 by Wireplus Limited.

On June 2, 2011, the New Zealand authorities issued their final report and found that imports of wire nails from China are being dumped and cause material injury to the domestic industry. Therefore a definitive anti-dumping duty was imposed starting from June 3, 2011. The amount of the duty is defined by the New Zealand Customs Instructions 'Wire Nails from China' E/009/CS015/001 dated August 2011. The rate of the duty ranges from 5% to 110%, depending on the company. Moreover, the following companies are not subject to the payment of a duty: Tianjin Baisheng Metal Products Co. Ltd, Tianjin Tianli Huafeng Metal Production Co. Ltd, Shanghai Puying Architecture Hardware Co Ltd.

On April 4, 2012, the New Zealand authorities initiated a limited review of the anti-dumping measure decided on June 2, 2011. It follows an application lodged on November 15, 2011 to determine whether specialised nails for fixing plasterboard should be exempted from the duty.
In June 2012, the New Zealand authorities terminated the review and decided to exclude the following specialised nails from the scope of the anti-dumping measure decided on June 2, 2011: hammer drive anchors, nail-in plugs, drive pins, GIB braceline nails. This modification has been taken into account by the New Zealand Customs Instructions 'Wire Nails from China' E/009/CS020/001 dated June 2012.

On 19 May 2014, with the Dumping and Countervailing Duties Amendment Act 2014, the New Zealand authorities decided to temporarily suspend the anti-dumping duties that are imposed on residential building material for a period of three years, starting on June 1, 2014 (until May 31, 2017). During this period, no new anti-dumping duty may be imposed on any residential building material and the following existing anti-dumping duties are suspended: standard plasterboard from Thailand, reinforcing steel bar and coil from Thailand, wire nails from the People's Republic of China. The measure imposed on June 2, 2011 is thus suspended from 1 June 2014 for a period of three years.
 
On 2 June 2016, the New Zealand authorities terminated the measure imposed on the subject good from China. The measure is terminated as it automatically expired.