In Britain, trademarks can be renewed online or by mail. You need to submit an application to the British Intellectual Property Office six months before the trademark expires, and pay the renewal fee as required. When applying for renewal, you need the registration certificate and renewal application form of the supplier's target, and you need to confirm the use of the trademark. If the trademark has been used continuously for the past 5 years, you can choose' used renewal' when applying for renewal; If the trademark has not been used in the past 5 years, you need to select' unused but intend to continue to use'. If you want to know more information and specific procedures about the renewal of British trademarks, I suggest you consult a professional intellectual property lawyer or professional organization.