In a simple case where there is a change in a partner
company’s share of the business the rules identify the
‘selling partner’ or partners and any company
associated with the ‘selling partner’ or partners as
associated companies of the relevant company.
Example: associated companies – change in interest in
business

Here B Ltd and G Ltd sell part of their interest in P, the partnership, to I Ltd. B Ltd and G Ltd are therefore the companies that are the ‘selling companies’ the companies ‘in relation to whose interest in the business there is a qualifying change’ and the ‘associated companies’ are traced through these partner companies. The associated companies of the relevant company are therefore the shaded companies.