SIM Application Toolkit. SIM Application Toolkit (commonly referred to as STK) is a standard of the GSM system which enables the Subscriber Identity Module (SIM) to initiate actions which can be used for various value-added services.
Cook them immediately if they have been thawed for no more than three days! Once you cook them they will last at least for another four or five days in the fridge! If nothing else put them in a good shrimp marinade for about one half hour - then SMOKE them over mesquite or hickory wood for one hour. These will be eaten up before five days is over! Good Luck & Bon Aperitif!
How to Keep Shrimp Longer After Thawing By Jenny Harrington Shrimp freezes well and is readily available in the frozen seafood section of the grocery store or meat market. Its shelf life is drastically reduced after the shrimp is thawed, so it's best to keep it in the freezer until you are ready to use it in a meal.