On December 19, 2011, the European Chemicals Agency ECHA issued an announcement officially announcing the sixth batch of 20 SVHCs. According to ECHA, p-teroctylphenol was originally nominated by Germany as an SVHC defined in Article 57(f) of the REACH regulation. It has endocrine disrupting properties and has serious potential harm to the environment. The remaining 19 substances nominated are classified as carcinogenic, teratogenic or toxic to reproduction (CMR). ECHA believes that these substances have potentially serious effects on human health. As of now, there are six batches of SVHC with 73 items. ECHA announced the first batch of 15 substances of high concern in October 2008, the second batch in January 2010, the third batch in June 2010, the fourth batch in December 2010, and June 2011. The fifth batch. Member states believe that more and more substances will be included in the list of substances of high concern in the future. REACH SVHCs added to 73 serial number substances EC No. CAS No. Purpose 2008.10.28 The first batch of 15 substances of high concern 1 Sodium dichromate dihydrate 234-190-3 7789-12-0 For tanning Sodium dichromate (7789-12-0 and 10588-01-9) 10588-01-9 2 xylene