Thanks, I got it, it may be the truth...
..."Trading profits and Gift Aid: One of the main reasons for setting up a trading subsidiary is to generate funds for the charity. A trading subsidiary can donate its profits to its parent charity and claim Gift Aid tax relief on the donation, if it is liable for corporation tax. Caution should be taken when deciding how much of the profit should be donated, because the subsidiary will need to retain and reinvest some profit to ensure its sustainability..."
..."Trading profits and Gift Aid: One of the main reasons for setting up a trading subsidiary is to generate funds for the charity. A trading subsidiary can donate its profits to its parent charity and claim Gift Aid tax relief on the donation, if it is liable for corporation tax. Caution should be taken when deciding how much of the profit should be donated, because the subsidiary will need to retain and reinvest some profit to ensure its sustainability..."