I found PRIMAHAM which is a Japanese company produce and sell allergy-friendry products in Thailand.
These are called KO-KUN Brand and have two types of hams, bacon, and two types of sausages. Isn't it nice?
These products do not contain
egg
wheat
milk
shrimp
crab
buckwheat（Soba）
peanuts
abalone（awabi）
squid
salmon roe（ikura）
orange
kiwifruit
beef
walnut
salmon
mackerel（saba）
soybean（daizu）
chicken
matsutake mushroom
peach
yam（yamaimo）
apple
gelatin
banana
sesame
cashew nut
Though these products themselves do not contain so many allergen, they also use same production line and produce other products which contains
egg
wheat
milk
beef
soybean
chicken
shrimp
