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PT Huajin Nickel Cobalt
PT Huajin Nickel Cobalt is an Indonesian nickel-cobalt processing company of the HPAL type, operating within the industrial-park ecosystem centered on the Indonesia Morowali Industrial Park (IMIP) in Morowali, Central Sulawesi.
PT Huayue Nickel Cobalt
PT Huayue Nickel Cobalt, also known as PT HYNC, operates a high-pressure acid leach nickel plant in the Indonesia Morowali Industrial Park, producing battery materials since 2021.
PT Kaltim Prima Coal
PT Kaltim Prima Coal (KPC) is an Indonesian coal mining company based in Sangatta, East Kalimantan, owned by Bumi Resources and known for its high-calorific Prima coal.
PT Pertamina Gas
PT Pertamina Gas, also known as Pertagas, is an Indonesian natural gas company founded in 2007 and majority owned by PGN, working in gas trading, transportation, processing, and distribution.
PT Smelting
PT Smelting is an Indonesian company that operates a copper smelter and refinery in Gresik, East Java, the first copper smelter built in Indonesia, founded in 1996.
PT Vale Indonesia
PT Vale Indonesia, formerly PT International Nickel Indonesia, is an Indonesian nickel mining and processing company headquartered in Jakarta, producing nickel in matte at Sorowako since 1978.
PT Voksel
PT Voksel Electric Tbk (VOKS) is an Indonesian cable manufacturer and EPC contractor producing power, copper wire, and fiber optic cables, founded in 1971 and listed in 1990.
PT XLSMART Telecom Sejahtera Tbk
PT XLSMART Telecom Sejahtera Tbk is an Indonesian telecommunications company formed on 16 April 2025 by merging XL Axiata, Smartfren, and Smart Telecom, serving over 73 million mobile customers.
PT-76 (ПТ-76)
The PT-76 is a Soviet amphibious light tank, the standard reconnaissance tank of the Soviet and Warsaw Pact armies, produced from the early 1950s until 1967.
PT-91 Twardy
The PT-91 Twardy (PT-91) is a Polish main battle tank of the early 1990s, a deep modernization of the Soviet T-72M1 with Polish fire control and reactive armor.
PT-symmetric metamaterials
PT-symmetric metamaterials are artificial wave-engineering structures where optical gain in some building blocks exactly balances loss in others, producing exceptional points, unidirectional invisibility, and enhanced sensing in optics, acoustics, and electronics.
PT-symmetric metasurfaces
PT-symmetric metasurfaces are engineered two-dimensional electromagnetic or acoustic structures arranged with parity-time symmetry through balanced gain and loss, enabling unidirectional invisibility and coherent perfect absorption.
PT. Krakatau POSCO
PT. Krakatau POSCO is an Indonesian steelmaker in Cilegon, a joint venture of POSCO and Krakatau Steel operating Southeast Asia's first integrated steel mill since 2013.
PTAA
PTAA, poly[bis(4-phenyl)(2,4,6-trimethylphenyl)amine], is an amorphous poly(triaryl)amine polymer semiconductor used as a hole transport layer in perovskite solar cells, where it conducts holes while blocking electrons; it was originally used in organic light-emitting diodes.
PTAM
PTAM (Parallel Tracking and Mapping) is an augmented reality camera tracking system that builds 3D point-feature maps in parallel with tracking, presented at ISMAR 2007.
PTAS
A PTAS, or polynomial-time approximation scheme, is a family of algorithms for NP-hard optimization problems that returns solutions within any chosen accuracy, for fixed accuracy running in polynomial time.
PTC Inc.
PTC Inc., formerly Parametric Technology Corporation, is an American industrial software company headquartered in Boston. Founded in 1985, it is known for the Creo CAD suite and Windchill PLM platform.
PTCL Group
PTCL Group is the business group of Pakistan Telecommunication Company Limited, Pakistan's largest integrated telecom operator, majority owned by the government and controlling fixed broadband and Ufone mobile services.
Pterodactyl Ascender
The Pterodactyl Ascender was an American single-seat canard flying-wing ultralight sold in kit form from 1981, designed by Jack McCornack and powered by a Cuyuna engine.
PTF boat
A PTF boat, or Patrol Torpedo Fast, was a fast, shallow-draft US Navy combatant craft of the Vietnam War era, most closely identified with the Norwegian-designed Nasty class.
Ptolemaios/Traianos Potamos
Ptolemaios/Traianos Potamos, also Diôrus, was the ancient Nile-to-Red-Sea canal through Egypt's Wadi Tumilat, begun under Necho II and Darius I, restored by Ptolemy II and reworked by Trajan (98–117 CE), and used in Roman Indo-Mediterranean trade.
PTRS-41
The PTRS-41 is a Soviet gas-operated, semi-automatic anti-tank rifle designed by Sergei Simonov and adopted in 1941, firing the 14.5×114 mm cartridge alongside the bolt-action PTRD-41.
PTT Exploration and Production
PTT Exploration and Production (PTTEP) is a Thai petroleum exploration and production company founded by the Royal Thai Government in 1985, operating more than 50 projects in over 10 countries.
PTT PCL
PTT PCL (บริษัท ปตท.), legally PTT Public Company Limited, is Thailand's state-controlled national oil and gas company, founded in 1978, listed since 2001, and majority-owned by the Thai government.
PTV VISSIM
PTV VISSIM is a commercial microscopic traffic simulation software by Germany's PTV Group, first released in 1993, that models cars, buses, cyclists, and pedestrians individually.
PTV VISUM
PTV VISUM is a Windows-based software package for transportation planning and travel demand modeling, published by PTV Group and used by about 4,000 customers in roughly 110 countries.
Ptychographic imaging
Ptychographic imaging is a coherent diffraction technique that reconstructs an object's phase and amplitude from overlapping diffraction patterns, working from X-rays to visible light without lenses.
Pu'an power station
Pu'an power station (中电国际普安发电厂) is an operating coal-fired power station in Pu'an County, Guizhou, China, owned by China Power International Development, with two 660 MW units commissioned in 2018 and 2019.
PUB, Singapore's National Water Agency
PUB, Singapore's National Water Agency, formally the Public Utilities Board, is the statutory board managing Singapore's whole water cycle, supplying water through the Four National Taps, including NEWater, and handling flood and coastal protection.
PubChem
PubChem is a free open chemistry database at the US National Institutes of Health covering chemical structures, properties, biological activities, patents, and toxicity information, launched in 2004.