However, it then sold out just five months later, taking a 30 per cent profit - of more than £5m.Two months later, Collins Stewart's shares plunged as it became embroiled in a high-profile dispute with James Middleweek, a former analyst for the company.Mr Middleweek publicly made allegations of market abuse. Further depots could follow, Mr Wiseman added.The company is seeking to win a contract to supply Wm Morrison's own-label milk. It used to supply 40 per cent of Safeway's milk, putting it in a strong negotiating position, Mr Wiseman said.. Toscafund, the hedge fund run by the former deputy chief executive of Credit Lyonnais Laing, Martin Hughes, has turned its focus again on Collins Stewart Tullett, the fund manager and broker, yesterday, taking a 4.2 per cent stake in the company. Robert Wiseman shares climbed 6.5p to 274p yesterday.The group said it hoped to open a depot in the South-east by next spring, completing its coverage of the UK.

This would help it service its extended contract with Tesco, which has been expanding in the region. "You get the taste without having to consume the fat, which is where all the taste is," he said, adding: "We would seriously consider going national with this product."The company is expected to decide whether "the one" will go national in six to eight weeks' timeAlmost two-thirds of all milk sold in the UK is semi-skimmed, (which has 1.5 per cent fat) while barely one in 10 pints sold is skimmed.His comments came as the company reported a 27 per cent rise in full-year profits to £28.9m Sales grew by 21.4 per cent to £474.5m. Robert Wiseman Dairies is attempting to revolutionise British milk-drinking habits by launching a new low-fat milk, called "the one". De Beers and the government of Botswana have one of the most enduring partnerships in the history of mining.". "At the end of the day, some sort of accommodation will be reached...

but it is hard to see that the terms will be as good for De Beers," Mr Hatch said.Jwaneng is one of the key mines in the Debswana joint venture between the government of Botswana and De Beers, the largest producer of rough diamonds in the world. The Jwaneng mine contributed about 29 per cent of De Beers' production last year, worth $1.3bn. By output, Jwaneng is De Beers' second-biggest diamond mine in the group, but by providing the company's highest grade diamonds, the mine has one of the biggest profit margins.A spokeswoman for De Beers said: "Informal discussions are underway. The government of Botswana is believed to want be paid more for the diamonds taken from Jwaneng, which would mean a cut in the profit margin enjoyed by De Beers at the mine. However, he said the new licence was likely to be on less favourable terms for De Beers and therefore for Anglo American. We'll be watching for news flow from Botswana very closely."Mr Hatch said the possibility that the licence would not be renewed was a worst case scenario. Nick Hatch, at Investec Securities, said: "The loss of Jwaneng or a major change to the terms of the mine's licence could have a material impact on Anglo's earnings....

The diamonds from the mine last year produced 70 per cent of De Beers' operating profits and 17 per cent of operating profits at Anglo American, or $525m.Negotiations between De Beers and the government of Botswana have not so far produced an agreement for the renewal of the licence. The plant, at Zhuhai in the Pearl River delta, is owned 85 per cent by BP and 15 per cent by the Fu Hua group and began production in September 2003.. The upcoming expiry of a key diamond licence in Botswana could wipe more than $500m (£285m) from Anglo American's profits, according to City analysts. Rob Routs, the chief executive of its oil products and chemicals division, said the joint venture signed yesterday would result in a "step-change" in Shell's retail presence in China.The chain of petrol stations, in which Shell will have a 40 per cent interest, is due to be fully operational in three years.BP also said it had signed a letter of intent to examine the feasibility of expanding production at a joint venture PTA plant near Hong Kong from 350,000 to 1.2 million tonnes a year. BP's biggest single investment is in a $2.7bn petrochemical complex being built outside Shanghai in partnership with Sinopec.Shell is a more recent entrant into the Chinese market with 1,000 staff and total project funding for ventures in China expected to reach $1bn this year.