Britain's Prime Minister Boris Johnson visits Rolls Royce factory in Bristol, Britain October 15, 2021. REUTERS/John Sibley/Pool

Britain's Prime Minister Boris Johnson visits Rolls Royce factory in Bristol, Britain October 15, 2021. REUTERS/John Sibley/Pool

Britain's Prime Minister Boris Johnson shakes hands during his visit at Rolls Royce factory in Bristol, Britain October 15, 2021. REUTERS/John Sibley/Pool

Britain's Prime Minister Boris Johnson and Defence Secretary Ben Wallace visit Rolls Royce factory in Bristol, Britain October 15, 2021. REUTERS/John Sibley/Pool

Britain's Prime Minister Boris Johnson visits Rolls Royce factory in Bristol, Britain October 15, 2021. REUTERS/John Sibley/Pool

Britain's Prime Minister Boris Johnson visits Rolls Royce factory in Bristol, Britain October 15, 2021. REUTERS/John Sibley/Pool

Britain's Prime Minister Boris Johnson and Defence Secretary Ben Wallace visit Rolls Royce factory in Bristol, Britain October 15, 2021. REUTERS/John Sibley/Pool

Britain's Prime Minister Boris Johnson and Defence Secretary Ben Wallace visit Rolls Royce factory in Bristol, Britain October 15, 2021. REUTERS/John Sibley/Pool

Britain's Prime Minister Boris Johnson points as he and Defence Secretary Ben Wallace visit Rolls Royce factory in Bristol, Britain October 15, 2021. REUTERS/John Sibley/Pool

Britain's Prime Minister Boris Johnson and Defence Secretary Ben Wallace visit Rolls Royce factory in Bristol, Britain October 15, 2021. REUTERS/John Sibley/Pool

Britain's Prime Minister Boris Johnson and Defence Secretary Ben Wallace visit Rolls Royce factory in Bristol, Britain October 15, 2021. REUTERS/John Sibley/Pool

Britain's Prime Minister Boris Johnson and Defence Secretary Ben Wallace visit Rolls Royce factory in Bristol, Britain October 15, 2021. REUTERS/John Sibley/Pool

Britain's Prime Minister Boris Johnson visits Rolls Royce factory in Bristol, Britain October 15, 2021. REUTERS/John Sibley/Pool

Britain's Prime Minister Boris Johnson visits Rolls Royce factory in Bristol, Britain October 15, 2021. REUTERS/John Sibley/Pool

Britain's Prime Minister Boris Johnson visits Rolls Royce factory in Bristol, Britain October 15, 2021. REUTERS/John Sibley/Pool

Britain's Prime Minister Boris Johnson visits Rolls Royce factory in Bristol, Britain October 15, 2021. REUTERS/John Sibley/Pool

A digger pushes sugar beet into a hopping machine at the Cristal Union sugar manufacturing factory during a media tour in Villers-Faucon, France, October 14, 2021. REUTERS/Benoit Tessier

A digger pushes sugar beet into a hopping machine at the Cristal Union sugar manufacturing factory during a media tour in Villers-Faucon, France, October 14, 2021. REUTERS/Benoit Tessier

Silos stand and vapour rises from the Cristal Union sugar manufacturing factory during a media tour in Villers-Faucon, France, October 14, 2021. REUTERS/Benoit Tessier

The logo of Cristal Union is pictured during a media tour at the manufacturing factory in Villers-Faucon, France, October 14, 2021. REUTERS/Benoit Tessier

A truck loaded with sugar beets waits to enter the Cristal Union sugar manufacturing factory during a media tour in Villers-Faucon, France, October 14, 2021. REUTERS/Benoit Tessier

Silos stand and vapour rises from the Cristal Union sugar manufacturing factory during a media tour in Villers-Faucon, France, October 14, 2021. REUTERS/Benoit Tessier

Trucks loaded with sugar beets wait to enter the Cristal Union sugar manufacturing factory during a media tour in Villers-Faucon, France, October 14, 2021. REUTERS/Benoit Tessier

Sugar beets are piled up after being harvested near the Cristal Union sugar manufacturing factory during a media tour in Villers-Faucon, France, October 14, 2021. REUTERS/Benoit Tessier

The logo of Cristal Union is pictured during a media tour at the manufacturing factory in Villers-Faucon, France, October 14, 2021. REUTERS/Benoit Tessier

A crane loads sugar beets in a field for transport to a nearby Cristal Union sugar manufacturing factory during a media tour in Villers-Faucon, France, October 14, 2021. REUTERS/Benoit Tessier

Sugar beets are harvested near the Cristal Union sugar manufacturing factory during a media tour in Villers-Faucon, France, October 14, 2021. REUTERS/Benoit Tessier

A crane loads sugar beets in a field for transport to a nearby Cristal Union sugar manufacturing factory during a media tour in Villers-Faucon, France, October 14, 2021. REUTERS/Benoit Tessier

A crane loads sugar beets in a field for transport to a nearby Cristal Union sugar manufacturing factory during a media tour in Villers-Faucon, France, October 14, 2021. REUTERS/Benoit Tessier

Freshly harvested sugar beets sit piled ahead of processing near the Cristal Union sugar manufacturing factory during a media tour in Villers-Faucon, France, October 14, 2021. REUTERS/Benoit Tessier

Freshly harvested sugar beets sit piled ahead of processing near the Cristal Union sugar manufacturing factory during a media tour in Villers-Faucon, France, October 14, 2021. REUTERS/Benoit Tessier

Sugar beets are harvested near the Cristal Union sugar manufacturing factory during a media tour in Villers-Faucon, France, October 14, 2021. REUTERS/Benoit Tessier

Trucks unload sugar beets in a storage yard outside the Cristal Union sugar manufacturing factory during a media tour in Villers-Faucon, France, October 14, 2021. REUTERS/Benoit Tessier

Sugar beets sit piled in a storage yard outside the Cristal Union sugar manufacturing factory during a media tour in Villers-Faucon, France, October 14, 2021. REUTERS/Benoit Tessier

A sugar beet plant is seen before harvesting near the Cristal Union sugar manufacturing factory during a media tour in Villers-Faucon, France, October 14, 2021. REUTERS/Benoit Tessier

A farmer selects sugar beet plants for inspection before harvesting near the Cristal Union sugar manufacturing factory during a media tour in Villers-Faucon, France, October 14, 2021. REUTERS/Benoit Tessier

A sugar crystallizer vat is seen on the production line inside the Cristal Union sugar manufacturing factory during a media tour in Villers-Faucon, France, October 14, 2021. REUTERS/Benoit Tessier

Employees work at the Cristal Union sugar manufacturing factory during a media tour in Villers-Faucon, France, October 14, 2021. REUTERS/Benoit Tessier

Employees stand at the Cristal Union sugar manufacturing factory during a media tour in Villers-Faucon, France, October 14, 2021. REUTERS/Benoit Tessier

Strips of sugar beet move along a conveyor belt after shredding at the Cristal Union sugar manufacturing factory during a media tour in Villers-Faucon, France, October 14, 2021. REUTERS/Benoit Tessier

A sugar crystallizer vat is seen on the production line inside the Cristal Union sugar manufacturing factory during a media tour in Villers-Faucon, France, October 14, 2021. REUTERS/Benoit Tessier

Trucks unload sugar beets in a storage yard outside the Cristal Union sugar manufacturing factory during a media tour in Villers-Faucon, France, October 14, 2021. REUTERS/Benoit Tessier

A sugar crystallizer vat is seen on the production line inside the Cristal Union sugar manufacturing factory during a media tour in Villers-Faucon, France, October 14, 2021. REUTERS/Benoit Tessier

Nigel Upton, Managing Director of Soanes Poultry stands outside their factory near Driffield, Britain, October 12, 2021. Picture taken October 12, 2021. REUTERS/Phil Noble

A cylinder of food grade Carbon Dioxide is pictured next to a packaging machine at the Soanes Poultry factory near Driffield, Britain, October 12, 2021. Picture taken October 12, 2021. REUTERS/Phil Noble

Packaged whole chickens are placed into boxes on the production line at the Soanes Poultry factory near Driffield, Britain, October 12, 2021. Picture taken October 12, 2021. REUTERS/Phil Noble

Chickens move along the production line at the Soanes Poultry factory near Driffield, Britain, October 12, 2021. Picture taken October 12, 2021. REUTERS/Phil Noble

Workers process chickens on the production line at the Soanes Poultry factory near Driffield, Britain, October 12, 2021. Picture taken October 12, 2021. REUTERS/Phil Noble

A cylinder of food grade Carbon Dioxide is pictured next to a packaging machine at the Soanes Poultry factory near Driffield, Britain, October 12, 2021. Picture taken October 12, 2021. REUTERS/Phil Noble

Workers process chickens on the production line at the Soanes Poultry factory near Driffield, Britain, October 12, 2021. Picture taken October 12, 2021. REUTERS/Phil Noble

A worker uses Carbon Dioxide as part of the packaging process at the Soanes Poultry factory near Driffield, Britain, October 12, 2021. Picture taken October 12, 2021. REUTERS/Phil Noble

A worker uses Carbon Dioxide as part of the packaging process at the Soanes Poultry factory near Driffield, Britain, October 12, 2021. Picture taken October 12, 2021. REUTERS/Phil Noble

A worker processes chickens on the production line at the Soanes Poultry factory near Driffield, Britain, October 12, 2021. Picture taken October 12, 2021. REUTERS/Phil Noble

Boxes of packaged chicken are taken off the production line at the Soanes Poultry factory near Driffield, Britain, October 12, 2021. Picture taken October 12, 2021. REUTERS/Phil Noble

A worker processes chickens on the production line at the Soanes Poultry factory near Driffield, Britain, October 12, 2021. Picture taken October 12, 2021. REUTERS/Phil Noble

A worker uses Carbon Dioxide as part of the packaging process at the Soanes Poultry factory near Driffield, Britain, October 12, 2021. Picture taken October 12, 2021. REUTERS/Phil Noble

A worker processes chickens on the production line at the Soanes Poultry factory near Driffield, Britain, October 12, 2021. Picture taken October 12, 2021. REUTERS/Phil Noble

Workers process chickens on the production line at the Soanes Poultry factory near Driffield, Britain, October 12, 2021. Picture taken October 12, 2021. REUTERS/Phil Noble

A worker processes chickens on the production line at the Soanes Poultry factory near Driffield, Britain, October 12, 2021. Picture taken October 12, 2021. REUTERS/Phil Noble

A worker cuts chicken into portions on the production line at the Soanes Poultry factory near Driffield, Britain, October 12, 2021. Picture taken October 12, 2021. REUTERS/Phil Noble