Can a second marriage contract be concluded in another country without officially registering it in the husband's country to avoid legal accountability, given that the husband's country prohibits polygyny?

There is no harm in marrying a second wife if the Sharia requirements are met, such as the guardian's permission and the presence of witnesses, even if the marriage is not officially registered in the husband's country, provided that this does not lead to the loss of the wife's or children's rights, such as financial support and inheritance.