The measure fits into the country’s broader roadmap for a circular economy.
Pricy watches helped offset the ongoing decline of cheaper timepieces.
The cathedral fire prompted an outpouring of support from around the world and hefty contributions from France’s wealthiest families.
The watchmaker cited the later timing of next year’s fair, but did not rule out returning the following year.
IBM helped with the project, which marks an increase in blockchain use in Europe.
Proposals include cutting traffic lanes in half, adding pop-up structures and lots of vegetation.
A hearing, related to contracts of Lanvin designer Bruno Sialelli, formerly with Loewe, is scheduled for June 14.
The former Bonhams executive will be based in Hong Kong.
Massaro worked with a number of Paris couture houses and designers including John Galliano, Christian Lacroix and Azzedine Alaïa.