CFSI’s revised Tin and Tantalum Standard

Posted by Super User

    The Conflict-Free Sourcing Initiative (CFSI) has released its revised Responsible Minerals Assurance Process, Tin and Tantalum Standard. The Standard replaces the CFSP Audit Protocol for Tin and Tantalum of 2013, and goes into effect on June 1st 2018.

    Key improvements in the revised Tin and Tantalum Standard The revision process brings the Standard in closer alignment with the OECD Guidance and ISO management systems. It also utilizes a global scope for the identification of Conflict-Affected and High-Risk Areas (CAHRAs), and includes a simplification of risk categories from the previous Level 1 to 3 system into low-risk or high-risk sourcing. Additionally, the Standard now explicitly references both conflict-related risks and other serious human rights abuses contained in the OECD Guidance’s Annex II risks. To align with ISO management systems, the Standard now includes requirements for document control and the internal performance monitoring of due diligence management systems. The revised Standard reduces the former focus on a transactional review, instead concentrating on smelters’ management systems. As a result, the standard includes enhanced requirements for know your counter-party (KYC) processes, fewer requirements for chain of custody documentation for low-risk sources, and consolidated data points for high-risk sources, aligning with the OECD Guidance recommendations. The Standard also includes updated sampling methodology, decreasing the number of samples for secondary material. Lastly, the Standard allows for smelters to use alternate systems for reporting transactions and conducting the mass balance and clarifies the definition of companies in scope.

Improvement on the Wire Drawing Process

Posted by Super User

  Due to the requirement of the wire products (Tantalum wire, Niobium wire, Nb1Zr alloy wire) keep rising in the market, CSTN now put more attention on the improvement of wire drawing process.

Firstly CSTN has invested heavily in improving the equipment,including introducing new equipmentand also adjusting and improving the existedequipments. At the same time, some professional experts has been brought in, most of them have many years of experience in the wire drawing area. This would help the improvement to be done effectively.

After continuous improvements and tests, CSTN has already solved the main problem on the wire drawing process.

  At present, CSTN can control the toleranceon the diameter under +/- 0.01mm,even  +0.01/-0mm or +0/-0.01mm, also with a quite good surface. This helpCSTN reach the world's leading level in the field of wire material.

  Nb1Zr wire is mostly used in the lighting area.In the past, the content of Zr was quite unsteady. After the improvement, the problem has been solved, the content of Zr has been strictly controlled under 0.9~1.1%Also there are some special requirements from different customers, it is not a problem for CSTN, who can try to meet the requirements after some adjustment.

  Now the quality of the wire has been controlled quite steady, after several testing orders, CSTN are now becoming the long-time supplier of some big customers, meanwhile the capacity of the wire has been increased to about 1.5tons per month.