Xi congratulates Zardari on election as Pakistani presidentU.S. chip firms urge Biden administration to approve sales to China as ban backfiresWang's NZ visit comes at pivotal time in relations, analysts sayEnvironmental legal cases down last yearCabinet vows to deliver on policy pledgesChina, UN coPeaceful principles playing key role in intl relations, FM saysSPP committed to lawXi emphasizes no letup in drive to combat air pollutionUN human development report shows China's great progress