Cross-border payment solution provider Airwallex announced that it had closed its extended Series D funding with an additional USD40 million. In April, the Hong Kong-based company announced the closure of its USD160 million Series D funding round. This takes the total equity funding raised to date by the company to over USD400 million. Airwallex has said that the additional investment will be used to strengthen its existing footprint in key regions such as the Asia Pacific and Europe, and to build a global digital infrastructure.