Is it permissible to partner in a soft drink factory by paying 600,000 in exchange for a quarter of the profits and losses, without bearing the cost of construction?

It is permissible for you to participate with a portion of the capital in a factory owned by another person, provided that you receive a quarter of the profit. This falls under the category of Mudarabah (partnership). Specifying a percentage of the profit is permissible, but the loss is borne in proportion to each partner's share in the capital, not according to the profit percentage.