"Yum Yum Shrimp Flavoured Noodles" are a type of box noodles made in Thailand.
They are sold under the brand "yumyum" which is run by "Wan Thia Food CO, LTD" and "Ajinomoto Co., Inc" since the 70s.
Their website exhibits a series on their production process which features their manufacturing plant located in Bangkok.

I got these for a discount price of AUD$1.50. I think they usually go for about AUD$4.00.