On June 2nd, 2009, the Secretary for Foreign Trade of the Brazilian Ministry of Development, Industry and Foreign Trade decided to initiate a sunset review of the anti-dumping duty imposed on imports of ferrite magnets from China (Circular No. 30, 02.06.2009). The products subject to investigation are classified under the following HS code: 8505.1910. The application for the review was lodged on March 3rd, 2009 by Supergauss Produtos Magnéticos Ltda. The investigation started on the day of the publication of the circular in the Federal Official Gazette of Brazil, i.e. on June 3rd, 2009.

On May 26th, 2010, the Brazilian authorities decided upon the continuation of the definitive anti-dumping duty imposed on imports of ferrite magnets originating in China (Resolution No. 37, 26.05.2010). The rate of the duty is 43% of the CIF value. This definitive duty entered into force on the day of the publication of the resolution in the Federal Official Gazette of Brazil, i.e. on May 27th, 2010.

The original anti-dumping measure was decided on June 4th, 1998 by Portaria Interministerial MICT/MF No 10 and entered into force on June 8th, 1998. It was already extended a first time on June 2nd, 2004 by Resolution Camex No. 15 (published in the Federal Official Gazette of Brazil on June 3rd, 2004).

On May 22nd, 2015, the Brazilian authorities decided to initiate a sunset review of the anti-dumping measure imposed by Resolution No. 37 dated May 26th, 2010 on imports of ferrite magnets originating in China (Circular No. 35, 22.05.2015).
It follows a request lodged on January 27th, 2015 by Supergauss Produtos Magnéticos Ltda. This sunset review started on the day of the publication of the circular in the Federal Official Gazette of Brazil, i.e. on May 25th, 2015. The existing anti-dumping measure remains in force during the review.
 
On 1 March 2016, the Brazilian authorities extended the imposition of definitive anti-dumping duty on imports of ferrite magnets from China for a five-year period (Resolution No. 18 of 29 February 2016). The amount of duty imposed is 570.73 per tonne.

On 26 February 2021, the Brazilian authorities initiated a sunset review of the definitive duty imposed on imports of the subject good from China. This follows the application lodged on 30 October 2020 by Altom. The duty will remain in force for the duration of the review.

On 21 February 2022, the Brazilian authority terminated the sunset review on imports of the subject good from China without the imposition of duties. The reason for termination is a negative determination. The reason for termination is the unreliability of the data reported by the petioner.