What is the ruling on wages that workers did not collect and then disappeared, and can these be considered [property] of the company?

If the agreement between the workers and the employer was for a daily or hourly wage, then they are entitled to the wage for what they have worked. Even if the agreement was for a longer period and they left the work before its completion, they are entitled to the wage for what they have worked, according to the opinion of some scholars. This opinion is more cautious and absolves one of responsibility.

If they do not return to collect their dues, and there is no hope of reaching them, then there is no harm in giving their rights in charity on their behalf, and the reward will be for them, with the owner of the money given the choice, if they appear, between the reward or their money, as Ibn Mas'ud did in the case of lost property (Luqata).