Air China have swapped PVG and PEK as their LGW ops since CTU got a LHR slot. Last summer saw PVG replace PEK from June but it seems PVG and PEK will run through the summer to LGW. The third PEK-LON was started at LGW then moved to LHR, they lost the slot post COVID so one for the LHR waiting room I suspect? Takes PEK-LON back to 3 x daily with a daily PVG at LGW and TFU at LHR.