1.
salting; salt-preserved; pickled in salt
Food preserved by coating or soaking in salt, or the process of salt preservation.
2.
unused assets; money left idle
Figuratively, assets or investments that are left sitting without being used or sold, often when their value has declined.
塩漬け has both culinary and financial meanings.
Sense 1 - food
SENSE 2 - FINANCE (figurative):
The financial sense comes from the idea of preserving something indefinitely without using it.