...We view HSBC UK Bank PLC (HSBC UK) as a core subsidiary of HSBC group. HSBC UK is an important contributor to HSBC group's financials, providing strong returns on capital and medium-term growth opportunities. The bank's ú14.6 billion common equity Tier 1 (CET1) capital base as at June 2024 represented 15% of the group's, and it contributed 21% to the group's pretax earnings (excluding notable one-off items) in the first half of 2024. We align our long-term issuer credit rating on HSBC UK with the 'a+' group credit profile on HSBC group, and we do not assign a stand-alone credit profile to HSBC UK. Through internal downstreaming, we think that HSBC UK's senior creditors would benefit from the parent's additional loss-absorbing capacity (ALAC) buffer. HSBC UK is a U.K. ring-fenced bank. HSBC UK focuses on U.K. retail and corporate banking, and wealth management (see chart 1). Its main peers are the other large ring-fenced banks--Lloyds Bank PLC, National Westminster Bank PLC, Barclays Bank...