How Red Bull and Toro Rosso cheat F1 rules

It seems that Red Bull will be building the same chassis for Red Bull Racing and Scuderia Toro Rosso in 2007. This is being achieved by using a third party company which is not a signatory to the Concorde Agreement. This has been achieved by turning the old holding company, Red Bull Racing Holdings Ltd, into a company called Red Bull Technology Ltd. This was done on December 20 2006, at least according to Companies House in England, where these matters are officially registered. It is listed as being headquartered at Building 1, Bradbourne Drive in Tilbrook, Milton Keynes. Red Bull Racing Ltd, the signatory of the Concorde Agreement, which was formerly known as Stewart Grand Prix and then Jaguar Racing. This is headquartered at Building 2 in Bradbourne Drive. More at Grandprix.com