スイス公式がこれだけど

The procurement for the purchase of the 36 F-35A amounts to 6,035 billion Swiss Francs and thus lies within the limits of the maximum financial volume approved by the Swiss electorate. The National Armaments Director Martin Sonderegger and the Program Manager for the procurement of the new combat aircraft, Darko Savic, have signed the contract. For their part, the US authorities have already signed the procurement contract.

https://www.vbs.admin.ch/content/vbs-internet/en/home.detail.nsb.html/90403.html