A trading company is a company, other than an excluded company - see VCM45500, which is:
For these purposes a group comprises a parent company and one or more subsidiaries in which the parent has a direct, or indirect, interest in more than 50% of the issued ordinary share capital. A trading group is a group where the business of the group members, taken together, consists wholly or mainly in the carrying on of a trade or trades. However, any group company which is:
is not regarded as carrying on a trade for this purpose.