The rules that use the category "<company_type-sing>" are:

<company_id-not_creatable>

<company_type-sing> <id_letter-sing>

<company_type-sing> <id_num-sing>

<ordinal-sing> <company_type-sing>

<company_id-not_creatable-sing>

<company_type-sing> <id_letter-sing>

<company_type-sing> <id_num-sing>

<ordinal-sing> <company_type-sing>

<company_id-creatable-sing>

<company_type-sing> <id_letter-sing>