The official Pokémon movie website has updated. Translations follow:

Pokémon Collaboration Packages from Garigari-kun Rich Choco Choco Go on Sale!

Akagi Nyugyo Co., Ltd. (headquarters: Fuyaka, Saitama. President: Sota Inoue) will release limited edition packages of "Garigari-kun Rich Choco Choco" as a collaboration with the movie "Pocket Monsters the Movie: I Choose You!"! The packages will be on sale all across Japan for a limited time starting Monday May 29th 2017!





These products tie into "Pocket Monsters the Movie: I Choose You!", which premieres Saturday July 15th, and are the 8th collaboration between Garigari-kun and Pokémon so far.
In addition, we'll also have a campaign where, if you get a winning popsicle stick during this period, you'll receive a "GariPoké Tote & Pouch" set with a limited edition Pokémon/Garigari-kun tote bag and pouch you can only get through this campaign!



Product page
Contact information:
Akagi Nyugyo Co., Ltd. Customer Service Office
TEL 0120-571-591
Open 9am to 6pm all days except Sundays

Source: http://www.pokemon-movie.jp/news/?p=2638