China is preparing its third batch of emergency aid supplies in response to Nepal's request and will dispatch its second team of DNA identification experts, Foreign Ministry spokesman Guo Jiakun said on Wednesday.

The third batch of supplies includes Bailey bridges and epidemic prevention materials, Guo said at a daily news conference in Beijing.

Currently, nearly 100 Chinese citizens remain out of contact in the disaster-stricken areas of Nepal, he said.

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"China appreciates Nepal's efforts and hopes the Nepalese side will continue to rescue and evacuate Chinese citizens in Nepal," he added.