Overview of our completed main dredging and land reclamation projects:

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I. Dredging project to create a technological trench and a pit for the hydraulic structure of the berth of the grain terminal of M.V. Cargo" in the port of Pivdenny, with a total length of 540m and a depth of -16.0m. The period of work was from June 2016 to January 2017. The work was carried out by an MP26 Liebherr 995 Litronic excavator, non-self-propelled split barges MC 34, MC 35, MC 36 with a hoper capacity of 940m3, sea tugs. The total amount of work performed was 835,000 m3.

Overview:The construction works were performed in the waters of the AdzhalykFirth. The initial depth was about 1 m. The goal was to construct a complex underwater pit before the construction of maneuvering and operational waterways near the berth. All dredging operations were performed through a narrow 60m technical cut with depth limitation of 7m. All the barges was at first tugged by a maneuverable ASD tug through the technical cut then passed to a conventional seagoing tug for the transportation to the dumping area. The project consisted of two parts: first - 710 000 m3 technical cut and the pit itself, second 125 000 m3 – mooring area for discharging the hopper dredger during the backfill stage of the construction.

Period of execution: 203 days

Dredged volume: 835 000 m3

Equipment: Backhoe dredger MP 26, non-self-propelled hopper barges MC34, 35, 36, auxiliary tugs Deneb1, Westgarth, Kronos, Mars.

Dredging depth: 16 m

Distance to dumping area: 13 km

Soil type: clay, heavy clay, strong shale

Layer thickness: 15 m

II. Dredging project to create a maneuvering area and approaches to berth No. 25 of the port of Pivdenny. The period of work was from August 2017 to December 2017. The work was carried out by an MP26 Liebherr 995 Litronic excavator, non-self-propelled split barges MC 34, MC 35, MC 36 with a hopper capacity of 940m3, sea tugs. The total amount of work performed was 865 000 m3.

Overview:The dredging works were performed in the waters of the AdzhalykFirth. The works were performed under the conditions of a constant workload of the port berth and approach waterways. It required the highest communication and united work of the fleet for ensuring a necessary productiveness and construction time compliance.

Several contractors worked in the dredging area. It greatly complicated the work difficult already. However, our company managed to complete the required works within the time limits set due to the dredger mobility and united work of the operations control centre.

The soil excavation was performed by layers (layer thickness: 1.5-2.0 m). The operations with the cut were performed in series. The pontoon of the dredger was moved along the series with the help of three hydraulically-driven spuds. The pontoon was relocated to a new series or cut by means of the tug, when required.

The excavated soil was loaded by the dredger to the non-propelled barges “MC-34”, “MC-35”, “MC-36” with the hold capacity of 940 m3, and was transported to the dumping area.

The unmooring, soil transportation and mooring of barges to the dredger pontoon were performed with the tugs with the capacity of not lower than 800 HP.

The dredging works, soil transportation and disposal were carried out day and night. The tugs were equipped with the navigation aids and remote control for opening/closing of the barges.

The uninterruptable dredging process was attained by a balanced interaction of the dredger, barge and tugs.

Period of execution: 147 days

Dredged volume: 865 000 m3

Equipment: Backhoe dredger MP 26, non-self-propelled hopper barges MC34, 35, 36, auxiliary tugs Deneb1, Westgarth, Kronos, Mars.

Dredging depth: 16 m

Distance to dumping area: 13 km

Soil Layer thickness: 15 m

type: clay, gault, shale

Layer thickness: 15 m

III. Works on the backfilling of the pit with the sand and creating a berth for the grain terminal of M.V. Cargo" in the port of Pivdenny, with a total length of 540m and a depth of -16.0m. The work was carried out from November 2017 to March 2018. Sand extraction at the Odesskaya Bank deposit, transportation and refilling into the body of the berth was carried out by a UMD HERCULES dredger with a hold capacity of 1820 m3. The total volume of refined sand was 560,000 m3.

Overview:The dredging works were carried out in the waters of the AdzhalykFirth. The works on filling the body of berth No. 25 with sand were performed through the method of rainbowing. Such works were complicated. Rainbowing was to be performed in strict adherence to the methods elaborated with the Customer in order to execute these works. The sand was filled in a certain order for equal load-sharing for all the components of the berth wall. The suction hopper dredger moved along the berth wall by loading anchors first that held the anchor wall. Just after a uniform offload of the anchorage, it was possible to discharge sand behind the face wall. Hence, the anchorage and face wall were loaded with a thin layer with a regular instrumental inspection of movements in every voyage. This made it possible to complete the work in compliance with the project and on time.

Period of execution: 151 days

Filling volume: 560 000 m3

Equipment: TRAILER SUCTION HOPPER DREDGER «UMD HERCULES»

Filling depth: from -16 m to +2 m

Distance to the site of sand excavation: 24 km

Soil type: sand

IV. Maintenance dredging of the approach channel and water approaches to the port of Dnepro-Bugsky and the 13th bend of the BDLC of the port of Mykolaiv. The work was carried out from February 2019 to May 2019. The work was carried out by the Trailing Suction Hopper Dredger "UMD HERCULES" with a holding capacity of 1820 m3. The totalvolumeofexcavatedsoilwas 365,000 m3.

V. Maintenance dredging of the approach channel of the port of Mariupol and the approach channel of the port of Berdyansk.The work period is from August 2019 to March 2020. The work was carried out by a Trailing Suction Hopper Dredger "UMD HERCULES" with a holding capacity of 1820 m3. The totalvolumeofexcavatedsoilwasapproximately 1,470,000 m3.

VI. Dredging under the EBRD project "Modernization of the port infrastructure by ensuring the depths of the seals and basins and the safe navigation in Constanta Port (Design + Execution)" in the port of Constanta, Romania.The work period is from May 2019 to June 2020. The work was carried out by an MP26 Liebherr 995 Litronic excavator, non-self-propelled split barges MC 34, MC 35, MC 36 with a holding capacity of 940m3, sea tugs, and a UMD HERCULES dredger with a holding capacity of 1820m3. The total volume of excavated soil was 1 050 000 m3, including 250,000 m3 of rock.

VII. Dredging works for the reconstruction of the water area and the creation of a pit for a berth in the port of Ashdod, Israel.The work was carried out to a design depth of -19.5 m. The work period is from February 2021 to August 2021. The work was carried out with an MP26 Liebherr 995 Litronic excavator. The totalvolumeofexcavatedsoilwas 390,000 m3, including 50,000 m3 ofrock.

VIII. Dredging works on the reconstruction of the approach channel in the port of Varna, Bulgaria.The work was carried out to a design depth of 14.55 m. with the transportation of the excavated soil to the marine underwater dump. The work period is from March 2021 to September 2021. The work was carried out by a Trailing suction Hopper Dredger "UMD HERCULES" with a hold capacity of 1820 m3. The total volume of excavated soil was 480,000 m3. Developed soils: silt, sandy loam, loam, sand.