PT Gunung Bayan Pratama Coal – South Kalimantan (1999 – 2015)

Petrosea completed work for a duration of almost 16 years to strip 30 – 55 million BCM of overburden per annum and expose clean coal at this remote mine site located at Muara Pahu, West Kutai. The stripping operations increased to suit GBP’s coal production rates which reached up to 19 strip ratios over the contract term.

PT Kaltim Prima Coal – East Kalimantan (1991 – 1995)

Petrosea undertook this coal mining contract in 1991 which involved the removal of over 10 million BCM of overburden, winning and hauling of over 2.2 million tons of coal to the client’s run-of-mine hoppers. The mining operations ran 24 hours per day, with monthly rates of approximately 400,000 BCM of overburden and 100,000 tons of coal achieved.

Bukit Baiduri Enterprise – East Kalimantan (1996 – 2001)

Petrosea was awarded this three year coal mining contract for the production of 700,000 tons of coal per year. This contract involved the overburden removal as well as winning and hauling of a total of 2.1 million tons of coal from the client’s operations on the Mahakam River in East Kalimantan. In May 1999, Petrosea was awarded a three-year contract extension to mine and haul overburden and coal.

PT Newmont Minahasa Raya – North Sulawesi (1994 – 2001)

Starting in 1995, Petrosea provided contract mining services at the Hard Rock Gold Mine Project at Mesel, North Sulawesi. Under the agreement, Petrosea was contracted to drill, blast, load and haul over 12 million m3 of waste and 2.5 million m3 of gold bearing ore over a five year period.

PT Danau Mas Hitam – Bengkulu (1991)

Petrosea’s scope of work at this project included the delivery of coal to the port of Pulau Baai, overburden stripping, crushing, washing and transportation. In addition, Petrosea also undertook the initial infrastructure development of roads, bridges, camps, offices, workshops, power and water reticulation systems.

Gulf Resources (Kakap) Ltd – Natuna Sea (1999 – 2000)

This Engineering, Procurement & Construction (EPC) contract included the building of facilities to gather, handle and export gas from the field, as an extension to the existing oil processing facilities. The scope of work also included retrofit of new gas reception facilities onto the existing KF platform and additional in-field subsea pipelines.

Atlantic Richfield Bali North Inc. (ARCO) – Pagerungan Besar Island (1997 – 1999)

This substantial engineering, procurement and construction contract continued Petrosea’s involvement with the facility which we originally built for ARCO seven years earlier. The contract involved all facets of development, from design, procurement and fabrication to the installation and start-up of two new trains, each with a capacity of 500 million standard cubic feet per day (MMSCFD), designed to significantly boost production capacity.

Atlantic Richfield Bali North Inc. (ARCO) – Pagerungan Besar Island (1991 – 1993)

This EPC contract was for a major gas field development project on Pagerungan Besar Island. Stage 1 (engineering) was completed by a dedicated project office established in Perth, Western Australia, while Stage 2 (procurement & construction for a gas processing plant, accommodation village, airstrip, tankage, harbor and all associated support works) was controlled from a project management office in Surabaya and project offices in Jakarta.

PT BHP Steel Indonesia – Banten (1993 – 1994)

A new metallic and organic steel coating factory marked the successful completion of Petrosea’s first major building design and construction project in Java. The 10,000m2 facility at Cilegon featured a 330m long main building with the highest bays rising up to 25m. The factory used to produce zincalume and colourbond sheeting.

PT Prima Lirang Mining – East Timor (1990 – 1991)

Petrosea was awarded a contract to construct a 600,000 tons per annum gold processing plant at Wetar Island, Maluku. This work involved the structural erection of steel work, mechanical installation of equipment and conveyors, erection of 26 tanks, piping, electrical generation and distribution systems as well as instrumentation control systems.

PT Freeport Indonesia – Papua (1993 – 1994)

In just nine months, Petrosea completed the new Amamapare cargo wharf, employing around 600 personnel located both on-site at Papua and at Petrosea’s Tanjung Batu fabrication yard in East Kalimantan. The 260m by 18m wharf space frame structure was fabricated at Tanjung Batu in six separate modules. Some 2,000 tons of structural steel was utilized in the wharf module structures and ancillary fabricated items. The modules were loaded onto barges and shipped to Papua for installation.

PT Freeport Indonesia – Papua (1993)

Petrosea was awarded this contract to design and construct two 120m long by 9m wide traffic bridges to carry heavy haulage freight vehicles from the newly developed Amamapare port to the mine site. The bridges were designed to withstand the twin-engine equipment mover with a pay load of 180 tons.

PT Freeport Indonesia – Papua (1991)

Petrosea was awarded this contract to upgrade a remote airstrip owned by PT Freeport Indonesia in Timika, Papua. The scope of work included the expansion of the airstrip by widening and lengthening it to cater for Boeing 737 and 757 aircrafts, asphalt resurfacing of the entire runway, apron and taxiways and line markings for the resurfaced pavements.

PT Santan Batubara – East Kalimantan (2009 – 2016)

PT Santan Batubara was a joint venture company owned by Petrosea and PT Harum Energy, with each owning 50% of its shares, located in an area of 24,930 ha in Kabuparen Kutai Kartanegara, East Kalimantan. First production commenced in March 2009, in which PT Santan Batubara successfully produced 1.25 million tons of coal during its first year. The target was to produce 3 million tons of coal per annum for the years 2011 until 2014.

PT Dasa Eka Jasatama – South Kalimantan (2001 – 2002)

Starting in 2001, Petrosea, in a Joint Operation (JO) with PT Pamapersada Nusantara, conducted a four year contract to strip and mine 6.4 million coal and transport the it approximately 35 km to a coal blending stockyard and another 71 km to a barge loading facility on the Barito river. The JO was responsible for controlling all aspects of the mining operations to initially produce 1 million tons of specified quality coal per year to fulfill DEJ’s sales into both the domestic and export coal markets.

PT Sanga Coal Indonesia – East Kalimantan (2003 – 2009)

Petrosea was awarded this four year mining services contract by PT Mitra Internusa Persada. The contract was to mine over 50 million BCM of overburden and 5.7 million tons of coal at the Sanga Sangat coal concession, located near Samarinda in East Kalimantan, approximately 90 KM north of Balikpapan. The scope of work included clearing of land, overburden removal, overburden stripping, mining and hauling. The mine itself was expected to produce 1.5 million tons of coal per annum.

PT Adimitra Baratama Nusantara – East Kalimantan (2009 – 2015)

In 2009, Petrosea signed a 60-month mining contract with ABN located 5 KM from Petrosea’s previous operations at Sanga Sanga. The scope of work included excavation, removal, loading and hauling of total 39 million tons of coal and 568 million BCM of overburden.

PT Karimun Granite – Karimun Island (2003 – 2006)

Petrosea was awarded an initial three year contract to mine and haul granite from the large quarry on Karimun Island. Due to Petrosea’s dedicated performance, Karimun Granite awarded a further two year extension contract which included the provision of heavy equipment to support the development of the total resource.

ConocoPhillips Indonesia Inc.Ltd. – Natuna Sea (2005)

This contract involved project management and engineering for the construction of approximately 50km of 12” and 16” diameter oil & gas pipelines, plus fabrication and installation of five subsea structures weighing up to 150 tons. The pipelines tied into a Floating, Production and Storage Offloading (FPSO) vessel, located in a water depth of 90m in the Belanak Field. Project management and engineering activities were undertaken at Petrosea’s head office in Jakarta and offshore installations were carried out utilizing Clough Limited’s offshore derrick lay barge, “Java Constructor”.

Premier Oil – Natuna Sea (2002)

This project was for modifications to the existing Anoa-AGX Gas Compression Platform located in the Natuna Sea. The scope of work included the design, supply, fabrication and installation of a new platform for gas production and processing with compression facilities as well as construction and commissioning of a 3km export pipeline between Gajah Baru and the existing WNTS system.

BP Kangean Ltd. – Pagerungan Besar Island (2002 – 2003)

This project was for the reconfiguration of the inlet compressor and vent recovery unit at the Pagerungan Inlet Compression Facilities, which Petrosea originally installed in 1998. The scope of work included engineering, procurement, fabrication, installation and pre-commissioning of the process piping, instrumentation as well as associated control logic and Data Control System (DCS) software.

PT Newmont Nusa Tenggara – West Nusa Tenggara (2000)

Petrosea was awarded this contract for the fast-track construction of a new pumping and pipeline system to divert wastewater from the Sumbawa mine site away from the local rivers. The scope of work included installation of more than 20km of pipelines, construction of three land-based pump stations, fabrication and erection of six break tanks, including the manufacture and erection of three pontoon pump stations.

PT Freeport Indonesia – Papua (2003 – 2004)

Petrosea undertook the construction of a new 100 meter long bridge at Otomona, Timika, Papua, owned by PT Freeport Indonesia. The scope of work for this project included the fabrication of a structural steel trussed bridge, approach trestles and piled foundations, relocation of an existing road and pipelines, as well as the removal and dismantling of the existing bridge.

BP Berau Ltd. – Papua (2003)

Petrosea was awarded this contract to upgrade a remote World War 2 airstrip in Babo, Papua, as the first regional development of BP Tangguh Ltd. The scope of work included the detailed design, procurement, construction and commissioning of the airstrip and helipad as well as associated facilities, such as a terminal building complete with a hangar and control tower as well as a floating pontoon berth for crew boats.

PDAM Tirta Kerta Raharja – West Java (2004 – 2013)

Petrosea, through its 47% equity interests in PT Tirta Kerta Cahaya Mandiri (TKCM), entered into a cooperation agreement with PDAM Tirta Kerta Raharja, a regional municipal water company, owned by the local government in the regency of Tangerang, Banten. From the first day of operations in November 2004 until December 2013, the Cikokol Water Treatment Plant successfully pumped and sold a total of 339.2 million m3 of quality drinking water to PDAM TKR.

PT Cibaliung Sumberdaya (Austindo Resources Corp NL) – West Java (2005 – 2007)

Petrosea undertook a range of continuous contracts for construction and infill engineering works during the relocation of the gold process plant from Mount Olympus Gold Plant at Paraburdoo, North Western Australia to Cibaliung, West Java. The Cibaliung Gold Process Plant comprised of a single stage primary jaw crusher, sag mill grinding, two stages of leaching followed by seven stages of CIL carbon stripping in elution electrowinning and dore smelting with plant throughput of 220,000 tons per annum.

BP Indonesia – West Java Sea (2004 – 2005)

This engineering, procurement and construction contract included design, fabrication and installation of three unmanned offshore monopod structures that were linked by 28km of 24″ diameter in-field pipelines, brownfield tie-ins to existing facilities, major compressors re-configuration, mechanical completion, commissioning and start-up assistance. The APN Field was located approximately 100km north-east of Jakarta off the coast of Java in water depths ranging from 15m to 45m.

PT Santan Batubara – East Kalimantan (2012 – 2016)

As part of the Santan Batubara expansion, in July 2012 Petrosea was awarded a mine services contract by PT Santan Batubara for the excavation and removal of 5.6 million tons of coal and 85 million BCM overburden.

PT Indomining – East Kalimantan (2015)

Indomining appointed Perosea to conduct mining services, including overburden and plant hire in its area located beside the ABN project, in which Petrosea had been working since 2009.

PT Indoasia Cemerlang – East Kalimantan (2015 – 2017)

On 16 October 2015, Petrosea and PT Indoasia Cemerlang entered into an overburden removal agreement at the Kintap mine area in South Kalimantan with a contract duration of one year. In October 2016, Petrosea signed an agreement amendment which included a contract extension and addition production volume.

PT Anzawara Satria – South Kalimantan (2016 – 2019)

On 11th January 2016, Petrosea and PT Anzawara Satria (ANZ) entered into an overburden removal agreement in area ANZ, Tanah Bumbu, South Kalimantan for a contract duration of three years until 2019. The scope of work included overburden removal, hire of mobile plant & personnel and coal hauling.

PT Binuang Mitra Bersama Blok Dua – South Kalimantan (2018 – 2020)

In May 2016, Petrosea and PT Binuang Mitra Bersama Blok Dua entered into agreement for mining services as well as heavy equipment rental and provision of personnel.

Conoco Phillips (Gressik) Ltd. – South Sumatera (2016)

Petrosea was awarded this contract to provide Engineering, Procurement and Construction (EPC) work for soil works, road and drainage construction at the Suban Compression Project located in South Sumatra. This project was completed five weeks ahead of the baseline schedule.

PT Sumbawa Timur Mining – Bima & Dompu, NTB (2018 – 2019)

In December 2018, Petrosea was awarded a contract by PT Sumbawa Timur Mining for the design & drawing, soil investigation and construction of core facilities.

PT Newmont Nusa Tenggara – West Nusa Tenggara (2016)

Petrosea was awarded this nine month contract by PT Newmont Nusa Tenggara for engineering and construction management services to engineer, construct and install a material re-feed conveyor, including an extension to the existing conveyor in order to increase mill capacity and improve utilization of the existing pebble crushers.

PT Freeport Indonesia – East Java (2019 – 2020)

On May 17, 2020, Petrosea completed work for the supply and placement of fill material project at the JIIPE site owned by PT Freeport Indonesia earlier than expected, originally to be completed on December 13, 2020.