The manufacturer's website states:
"Designed and developed in New Zealand, Rascal + Friends was the brainchild of a Mom who dreamt of a diaper that ticked all the boxes. To bring you the very best R+F quality you know and love, we source premium raw materials from around the world and assemble our products in China. We do this so Rascal + Friends is affordable, accessible and can take advantage of technological growth and innovations".

Thanks for the clarification.
But the country of manufacture is mainly indicated on the packaging.
In fact, most manufacturers don't mention anything on their website when their products are made in China.
With the exception of Rascal & Friends, who only mention the country of manufacture in this short, polished text on their website.