Seems more like globalism is to blame. They were from a Taiwanese company but manufactured in Hungary.
Guessing the source of the pagers didn't matter at all and Israel probably intercepted a shipment to plant bombs in them themselves. Lithium batteries can ignite, but they don't just explode like that. There were bombs put in those pagers, be it by Israel or whoever else, coordinated as a targeted operation.
Posts from Chinese social media, stating factories are running overnight shifts to accommodate huge orders of communication devices from the Middle East.
A requirement from clients, is that the whole manufacturing process must be done inside China.
Hot take: that was the better military move by isreal than bombing 2000 women and children to kill 1 hezbula member, too bad they still killed children...