Question) Prime Builder, a building contractor was contracted by a building owner to construct a 10-

storey office building in Singapore. The SIA Lump Sum contract (9^th Edition) was used for the contract. The following were stated in the contract:

• Contract commencement date: 1^st March 2021
• Contract completion date: 28^th Feb 2022
• Maintenance period: 12 months from contract completion date

P&G Architect was appointed by the building owner to design the building and an architect.

was appointed as the contract administrator. The following situations occurred during the

construction period.

1. Priortothecontractcompletiondate,PrimeBuilder wrotetothearchitecttorequestforEOT for orders given to them during the construction period. The architect granted anEOT of 15 days to the contractor. However, the contractor was unable to complete theworksby theextended completion date. On 20^th March 2022, the architect gave a written order to require the contractor to doadditional works. A further EOT was granted to the contractor from 20^th to 25^th March2022.However,thecontractorwasabletocompletealltheworks(includingadditionalworks)on 30^thMarch 2022.

1. State the relevant dates and types of certificates the architect has to issue to thecontractor from the contract completion date to the end of maintenance period.Discuss theimplications ofeachcertificate. (Assumedelaycertificateisissuedonedayafterthecontractcompletiondateandvariationworkwasnot orderedduring themaintenanceperiod.

1. Calculatetheliquidateddamages(LD)duetotheowneriftheLDrateis$3,500perday (inclusiveofSaturdays, Sundays, andpublicholidays).