In the late 1980s, BNFL decided to enter the mixed oxide (MOX) fuel fabrication business to support our reprocessing business to and return the plutonium product to our customers in the usable forro of MOX fuel. The first phase of the strategy was to gain some irradiation experience for MOX produced by our own Short Binderless Route (SBR) process. To achieve this, the MOX Demonstration Facility (MDF) was built at Sellafiel, and 28 MOX fuel assemblies were produced up to 1998 that were loaded into PWRs in Europe. In 1994, BNFL started the construction of their large-scale MOX production plant, simulator modiciation package (SMP). The design and construction of the plant and supporting facilities were completed some years ago, and the commissioning of the plant with uranium commenced in June 1999. In October 2001, the United Kingdom government announced that the manufacture of MOX fuel in SMP was justified. On December 19, 2001, the U.K. regulators gave BNFL their approval to start plutonium operations. This paper considers the status of BNFL's MOX project today and the progress that we have taken towards achieving our business objectives. [ABSTRACT FROM AUTHOR]