Syngenta is to invest £75m in the expansion of its crop protection manufacturing facilities in Grangemouth and Huddersfield, while £35m will be spent at its Jealott's Hill research centre in Bracknell.
Syngenta is to close its Central Toxicology Laboratory near Macclesfield in 2008 with the loss of about 300 jobs, and some of the work will transfer to its site in Bracknell.
Syngenta has closed The Forum conference centre in Huddersfield, with the loss of up to 50 Eurest catering jobs.
Syngenta is to shed 240 of the 600 jobs at its chemicals plant in Huddersfield over the next 18 months.
Syngenta is planning to set up a pilot project to generate electricity from rapeseed oil at Driffield, Yorkshire, with the output being sold to Smartest Energy to power 1,000 homes.
Syngenta is to close its genetically modified crops laboratory at Jealott's Hill in Berkshire with the loss of 130 jobs, in order to transfer the work to North Carolina in the US.
Syngenta has announced plans to close its crop protection chemicals plant in Grimsby over the next three years, with the loss of 150 jobs.
Syngenta is to shed 130 of the 780 jobs at its crop protection chemicals plant in Huddersfield.
Syngenta is looking to sell its crop protection chemicals plant in Grimsby, but the site will close with the loss of 165 jobs unless a buyer is found by 2004.
Syngenta is looking to sell its 90-acre site at Fernhurst, and is seeking an alternative location nearby for its European crop protection headquarters.
Syngenta is seeking permission to open a £50m agrochemicals plant at Grangemouth in May to produce a new fungicide called picoxystrobin.