20 Dollars Standard Chartered Bank

Standard Chartered's right to issue Hong Kong banknotes derives from an arrangement that has persisted since the colonial period, making it one of three commercial banks still legally authorised to put currency into circulation in the territory — an anomaly almost nowhere else in the world. The 2018 series marked a design refresh for the bank's Hong Kong issues, with G+D Leipzig handling the production as they had for previous runs.

Cotton substrate rather than polymer is a deliberate choice for this denomination, though Hong Kong's high humidity and circulation intensity mean cotton-paper notes in lower denominations typically show wear faster than their regional counterparts.