4. For supplies and works—
(a)Nature and quantity of the goods to be supplied; or the nature and extent of the services to be provided and general nature of the work.
(b)Indication of whether the suppliers can tender for some and/or all of the goods required. If, for works contracts, the work or the contract is subdivided into several lots, the size of the different lots and possibility of tendering for one, for several or for all of the lots.
(c)For works contracts; information concerning the purpose of the work or the contract where the latter also involves the drawing up of projects.