We warmly congratulate Dr. Guanyu Liu for his co-corresponding-authored joint paper titled Chemical switching of low-loss phonon polaritons in α-MoO₃ by hydrogen intercalation accepted by Nature Communications. This work is under the initiated collaboration framework with Prof. Qiaoliang Bao from Monash University. Dr. Guanyu Liu, Prof. Xiangping Li and Prof. Qiaoliang Bao are co-corresponding authors of this work