...October 29, 2020 - We foresee potential extraordinary negative group intervention from Bank of China Ltd. (BOC) in Bank of China (Hong Kong) Ltd. (BOCHK), and therefore we made a one-notch negative adjustment to rate BOCHK one notch above the rating on BOC. - We expect BOCHK to continue benefitting from the Hong Kong government's extraordinary support, if needed, due to the bank's high systemic importance to the Hong Kong banking sector. - We are affirming our 'A+' long-term and 'A-1' short-term issuer credit ratings on BOCHK. - The stable outlook reflects our expectation that BOCHK will maintain its strong stand-alone credit profile (SACP), high systemic importance in Hong Kong, and close link with BOC over the next two years. HONG KONG (S&P Global Ratings) Oct. 29, 2020--S&P Global Ratings today affirmed its 'A+' long-term and 'A-1' short-term issuer credit ratings on BOCHK. The outlook on the long-term rating is stable. We also affirmed all issue ratings on the bank's outstanding debt....