REQUEST FOR INFORMATION FOR EXEMPTION 72 HOURS WITHOUT VISA A CHANGDU. FOR A SWISS NATIONAL

Hello

I would need information regarding the possibility of benefiting from the 72-hour free transit waiver for a Swiss national.

Because I get different information:

According to the following itinerary, staying in Chengdu less than 72 hours: from Switzerland via Singapore (only transit), arrival in China (Chengdu) stay of less than 72 hours, and departure from China (Chengdu) to Singapore (only transit ) and then Australia (stay) - and return to Europe.

Thank you very much for your information.
Best regards.

Michel