Gallagher Convention Centre Location PO Box 3915Midrand - JohannesburgSouth-Africa1685 Next Event BIG 5 CONSTRUCT South Africa - 27 June 2023 - 29 June 2023 - Hele dag Upcoming Events BIG 5 CONSTRUCT South Africa - 27 June 2023 - 29 June 2023 - Hele dag Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website Save my name, email, and website in this browser for the next time I comment.