Cadbury says its plant in Birmingham has to "change the way it works" following reports hundreds of jobs will be cut.
The union, Unite, claims hundreds of jobs will go at the plant in Bournville.
It follows plans by the owner, Mondelez International, to spend £75m replacing machinery at the factory to increase productivity.
Birmingham-based Cadbury is to cut hundreds of jobs at its plant in Bournville, the union Unite claims.
It comes following plans by the plant's owner Mondelez International to spend £75m replacing machinery at the factory to increase productivity.
Unite's West Midlands regional secretary, Gerard Coyne, has welcomed the investment but admits there will be job losses.
Cadbury has recalled two chocolate products in Malaysia after they were found to contain traces of pork DNA.
The traces were found during a periodic check for non-halal ingredients in food products by the Ministry of Health, which on Saturday said two of three samples of the company's products contained pork traces.
The two products, Cadbury Dairy Milk Hazelnut and Cadbury Dairy Milk Roast Almond, were available in stores throughout the country.
Cadbury Malaysia, like most food makers in the country where Muslims make up more than 60 percent of the population, has all of its products certified halal to conform with Islam's dietary restrictions, one of which is a prohibition on pork.
The company said it was undertaking a full review of its supply chain to ensure halal standards, according to the report, and the Malaysian government said it will conduct inspection of all Cadbury Malaysia's products.
Cadbury Malaysia was not immediately available to comment.
Birmingham-based chocolate maker Cadbury is investigating claims a wasp was found in one of its chocolate bars, according to reports.
It follows somebody tweeting the company a picture of what appears to look like a chocolate bar with an insect embedded in the side of it.
According to the Metro, Cadbury responded telling the twitter user it was taking the matter seriously.
Chocolate giants Nestlé and Cadbury have clashed over the shape of Kit Kat bars.
Nestlé have gone to court to try and trademark the three-dimensional shape of a Kit Kat finger, but Cadbury, based in Birmingham, is objecting.
Mr Justice Arnold is currently waiting on a decision from a European court relating to the dispute. He said:
"Certain aspects of the relevant law remain unclear.
"I have decided it is necessary to seek clarification of the law from the Court of Justice of the European Union in order to determine the (dispute)."
This is not the first time the rival companies have had legal disputes. Nestlé successfully overturned a courts decision to allow Cadbury to trademark the colour purple used in its famous 'Dairy Milk' chocolate bars.
Cadbury has come under fire for scrapping the Christmas chocolates it sends to its retired workers.
Fourteen thousand pensioners used to get a parcel of chocolate worth £15 every year, but the firm says it is stopping that because there is a big hole in the pension fund.
Mark Gough reports.
Nick Clegg has today launched the government's National Apprenticeship Week campaign, by criticising the assumptions associated with vocational qualifications.
The Deputy Prime Minister wants to change the 'second division' perception of apprenticeships over academic qualifications.
A Cadbury's apprentice has told ITV News Central that vocational skills should be seen on the same level as academic qualifications.
Faye Hudson, one of 53 apprentices at Cadbury's, believes the opportunity to 'earn and learn' has offered her more than university could have, after quitting her degree for on the job training.
Today marks the beginning of National Apprentice Week – a government campaign that highlights its £1.5billion investment in training schemes across the UK.
The number of apprentices in the Midlands has increased by more than ten per cent in the last year, according to the National Apprenticeship Service.
Mondelez, which owns Cadbury's, is one employer in the Midlands investing in apprenticeship schemes. It's predicted within ten years, the number of apprentices will rise by 85 per cent, which the government says will help rebuild the economy.