We refer to our Loss Prevention Advice of December 1997, which references our circular of July 1982, which was prepared following the 23rd session of the IMCO (now International Maritime Organisation) Sub-Committee on Containers and Cargoes in January 1982, in which a working group recommended certain amendments to the entry for Direct Reduced Iron (DRI) in the IMO Code of Safe Practice for Solid Bulk Cargoes (the BC Code).  The committee's recommendations were subsequently ratified by the IMO Maritime Safety Committee. DRI is classified as a Group B cargo according to the BC Code; that is, a cargo that possesses a chemical hazard that could give rise to a dangerous situation on a ship, and in particular, it is a Material that is Hazardous only when transported in Bulk (MHB). DRI (A) and DRI (B) Since 1982 two types of Direct Reduced Iron have been recognised in the BC Code.  The first type is the highly reactive, low density  DRI  in the form of lumps and pellets (from about 6mm to 25mm in size) and cold moulded briquettes.  This material was originally entered in the BC Code under BC No. 015.  The second, less reactive type is the high-density variety of DRI that is obtained by compressing the product at temperatures in excess of 650 o C, and is known as Hot Briquetted Iron  HBI , or Hot Moulded Briquettes  HMB .  A briquette will typically measure about 120mm x 90mm x 30mm thick and should have a density greater than 5000 kg/m 3 , (5 g/cm 3 ).  This material was originally entered under the BC Code No. 016. The entries for DRI were amended in the 2005 edition of the BC Code.  The high-density, hot briquetted material is now entered as Direct Reduced Iron  (A) , and the more reactive, low-density material is Direct Reduced Iron  (B) DRI and HBI Fines Recently, there has been a trend to offer DRI and its derivatives in the form of fines that are generated as a by-product from the manufacture of DRI an