COVID-19 pandemic has made business difficult for Chinese exporters since early 2020. But, displaying resilience and imagination, they are defying physical realm constraints and even chartering flights to travel to all parts of the globe, in order to attend trade shows, build rapport with overseas buyers, retain existing clients and win new business orders. This, in turn, is helping them to embrace customized production, upgrade technologies and ensure growth amid an overall downturn, trade experts said.