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Acid Plant Database July 9, 2025
		 
	Leyte Industrial Development Estate (LIDE) 
	Formed in 1976, the company actively pursued the construction of the plant 
	in Leyte which was completed in 1983 to signal the Philippine Government's 
	industrialization plans for the country. PASAR's primary product is 
	electrolytic copper cathodes, the raw material used for manufacturing 
	various kinds of electric cables, telecommunication wires, copper shapes and 
	copper-alloy products. The PASAR Copper Cathode is registered as Grade A 
	Copper in the London Metal Exchange (LME) and as COMEX High Grade Copper in 
	the Commodity Exchange (COMEX) Division of the New York Mercantile Exchange 
	(NYMEX). It is also listed in the Shanghai Futures Exchange. The location of PASAR copper 
	smelter and refinery in Leyte in the central Philippines has resulted in 
	many advantages for the company and its partners. The port possesses a 
	deep-harbor facility which is being reconstructed to berth and handle 
	vessels up to 50,000 DWT. It lies in the center of the Philippine 
	archipelago, ready to serve the smelting needs of the country's reviving 
	mining industry.  The complex includes pollution abatement facilities; 
	port and bulk handling facilities; an airstrip; a medical facility; and 
	housing, recreation and educational facilities for company personnel and 
	their dependents.  The PASAR plant complex occupies 80 hectares in the 
	424-hectare Leyte Industrial Development Estate (LIDE). Completed in 1983 at 
	the cost of US$300 million with the capacity to produce 138,000 metric 
	tonnes of Grade A electrolytic copper cathodes annually, it was expanded in 
	1993 to its current production capacity of 172,500 metric tonnes per year. In June 1999, a consortium of 
	Philippine investors and Swiss trader, Glencore International AG, procured 
	90% of the Philippine Government's shareholding and its receivables from 
	PASAR. This acquisition was carried out as part of the country's 
	privatization program, thus, transforming the company into a privately-owned 
	corporation.  Subsequently, the shares owned by the Japanese consortium 
	were sold to a privately-held company.  Now, the capacity of the 
	smelter has been expanded to 720,000 mtpy of concentrates in 2006, and the 
	refinery will be expanded to 215,000 mtpy of cathodes by mid-2007.  The 
	design of the plant was patterned after Japan's Tamano smelter and refinery 
	plant, considered as one of the world's most efficiently-run smelters. The 
	flash smelting process developed by Outokumpu Oy of Finland and modified by 
	the Mitsui Mining and Smelting Company, was adopted for more flexibility in 
	processing different grades of copper concentrate, high recovery of sulfur, 
	and reduced power and oil consumption.  Copper concentrate, the basic 
	feedstock undergoes a smelting and refining process in which impurities are 
	removed and refined copper is extracted. Precious metals and other 
	byproducts are also recovered in the process.  PASAR has expanded its 
	smelter capacity to 720,000 mtpy of concentrates in early 2006. In May 2007, 
	PASAR will complete a brownfield conversion from conventional starting sheet 
	electrorefining to ISA process. Refinery capacity will be increased from 
	172,500 mtpy to 215,000 mtpy of coppr cathodes. February 1, 2012 - It took an unexpected snag in the 
	operations of an important plant, to prod temporarily out-of -job workers to 
	try other jobs.  Around 2,000 casuals and contractual workers were 
	affected by the closure of the Philippine Associated Smelting and Refining 
	Corp (PASAR) in Leyte. To help the displaced workers, the local government 
	of Isabel had been conducting job fairs for skilled workers like pipe 
	fitters and welders to help them find jobs outside the country.  An 
	official of the local government unit (LGU) of Isabel, Leyte has expressed 
	concern on the stoppage of operations of the Philippine Associated Smelting 
	and Refining Corp. (PASAR) located inside the Leyte Industrial Development 
	Authority in Isabel, Leyte.  It might be remembered that PASAR 
	management temporarily shut-down its operations when its acid plant, where 
	the electrostatic precipitator (EP) was located, burned down at around six 
	o’clock in the morning of January 2. The EP is vital to the operations of 
	the plant.  Allan Borinaga, senior administrative assistant to Isabel 
	town Mayor Saturnino Medina expressed concern on the effect of the stoppage 
	of operations saying that the town stands to lose in income as PASAR is the 
	top source of income generation for the municipality.  Borinaga 
	disclosed that with the stoppage PASAR management is seeking for a 
	moratorium of sales tax payment. The LGU would suffer a big lose to as much 
	as P 5 million every quarter from the non-payment of sales tax alone. He 
	also said that the income received from PASAR is used by the LGU to defray 
	the costs for its various programs and projects for the people. January 9, 2012 - The Philippine Associated Smelting and 
	Refining Corp. (Pasar), the only copper smelter and refinery in the country, 
	has stopped its operations after a fire damaged its acid plant located 
	within the Leyte Industrial Development Estate in Isabel, Leyte.  But 
	Pasar management has assured its 800 regular employees and 1,500 service 
	contractors will continue to report to work and will be paid although will 
	be temporarily assigned to different tasks.  “We foresee a challenging 
	time ahead due to the shutdown as we repair and rebuild the damaged portions 
	of the acid plant. We are not yet sure how long this will take, but we are 
	assessing what needs to be done in rebuilding the EP (electrostatic 
	precipitator), to keep the shutdown as short as possible and to restart 
	operating at full speed as soon as possible,” Pasar president Sias H. Els 
	said.  Els added that Pasar is doing everything in exploring all the 
	possible options and actions to recover immediately.  “Everyone will 
	therefore continue reporting for work as usual until further notice, 
	although perhaps with different work assignments, and everyone will get 
	paid. We need to use the opportunity to do housekeeping and properly clean 
	and do repairs where needed,” Els said.  Pasar’s acid plant, where the 
	EP was located, was burned down in the morning of January 2. It took five 
	hours for fire fighters to contain the fire.  The extent of the fire 
	was severe but no fatalities and no direct injuries were reported. Minor 
	burns were suffered by an employee, Orland Matuguina, who was involved in 
	the fire fighting operations.  Fire probers initially estimated the 
	damage at P15 million. But according to J. Paul Tan, Pasar’s assistant 
	vice-president for industrial and community relations department, the damage 
	could reach as $1 million.  “We could not immediately determine the 
	actual damage. Our assessment continues. The acid plant alone costs a little 
	over $1 million. But right now we are sending people to China and Japan to 
	find for replacements of the burned machineries. We need it custom-built and 
	that is why it will take us sometime to resume operations,” Tan said.   
	Tan admitted that Pasar’s operation is “not normal” and has affected the 
	production of electrolytic copper cathode and refined copper anode where 
	markets are very high in China, Korea, Taiwan, Vietnam, Thailand, Malaysia, 
	Indonesia and Japan.  Tan said the company wants to restart operations 
	by February.  “What happened was an integral risk of smelting. With the 
	full support of our shareholders, we will overcome this challenge,” Tan 
	said.  Tan added the company could continue operating but electronic 
	precipitators is vital to its anti-pollution measures. 
  
		025
     
  
	Owner 
    
	Philippine Associated Smelting and Refining Corporation - 
	PASAR 
    
     
  
	Location 
    
    Isabel, Leyte, Philippines
     
  
	Background 
    
	1999  - Acquired by Glencore 
  
     
  
	Website 
    
	www.pasar.com.ph  
  
     
  
	Plant  
    Plant 1 
    Plant 2 
  
     
  
	Coordinates 
    10° 53' 
	27" N, 124° 26' 11" E  
    10° 53' 25.50" N, 124° 26' 12" E 
  
     
  
	Type of Plant 
    
	Metallugical 
    Metallurgical 
  
     
  
	Gas Source 
    
	Copper 
    
    Outokumpu Flash Furnace
	
	Copper 
  
    Outokumpu Flash Furnace
     
  
	Plant Capacity 
    
	1291 MTPD 
    
	1700 MTPD 
  
     
  
	SA/DA 
    
	3/1 DA 
    
	
	3/1 DA 
  
     
  
	Status  
    March 2025 - Operation Suspended 
    March 2025 - Operation Suspended 
  
     
  
	Year Built 
    
	1981 
    
	2015 
  
     
  
	Technology 
    
	Mitsui-Monsanto 
    
	China Nerin Engineering, Co., Ltd. 
  
     
  
	Contractor 
    
	Mitsui Mining & Smelting Co., Ltd. 
    
	MESCO, Inc.
	China Nerin Engineering, Co., Ltd. 
  
     
  
	Remarks 
    
	WESP's renovation project executed by
	
	Nerin - 8 WESP's, Capacity: 320,000 Nm3/h  
  
     
  
	Pictures 
     
         
   
   
 
	
	
     
   
	 
     
 
	
	
	 
  
     
  
	General 
    
     
  
	References 
    - 
  
     
	News 
    
	July 8, 2025 - Miner and commodities trader Glencore (LON: GLEN) is 
	selling its copper smelting operation in the Philippines to the Villar 
	family, led by real estate magnate and former senator Manuel “Manny” Villar 
	Jr.  The asset in question, the Philippine Associated Smelting and 
	Refining Corp. (Pasar), has long served as a key logistics hub for Glencore. 
	Strategically located, it handles copper concentrate shipments from 
	Australia and Indonesia, and occasionally distressed cargoes bound from 
	South America to China.  But global copper smelters, including Pasar, 
	have been hit hard by a steep drop in treatment and refining charges, driven 
	by overcapacity and limited supply of mined ore. In February, Glencore 
	placed Pasar on care and maintenance, part of a broader restructuring of its 
	global smelting operations.  That overhaul includes consolidating its 
	Canadian copper assets in Quebec and several recycling facilities in the 
	United States into its global zinc smelting division. The move aims at 
	cutting costs and streamlining operations.  The divestment marks 
	another step in Glencore’s sweeping review of its copper and zinc assets, 
	triggered by a sustained slump in profitability across the sector.  
	Villar, whose net worth is pegged at $17 billion by Forbes, controls 
	the Philippines’ largest homebuilder. His business empire spans shopping 
	malls, broadcast media, hardware retail and supermarkets.  Bloomberg first 
	reported the sale, quoting people familiar to the matter, though details 
	including the deal’s value remain undisclosed. 
  
	
	February 
	24, 2025 - Philippine Associated Smelting and Refining Corporation 
	(PASAR) has announced today that it will be putting its Leyte plant site 
	into care and maintenance. This decision comes as part of an ongoing 
	evaluation of the operation and increasingly challenging market conditions. 
	 PASAR, a Glencore managed company, has been operating in the Philippines 
	for over 25 years and over that time is proud to have made a significant 
	economic contribution to the Leyte region. The PASAR copper smelter has been 
	a significant part of Glencore’s operations in the region, and we are very 
	appreciative of our dedicated workforce at PASAR.  This was not an easy 
	decision, but it is a necessary step in the face of current market 
	challenges. We understand the impact that this decision will have on our 
	employees, local communities, and stakeholders.  PASAR is committed to 
	working closely with employees and local communities to provide support 
	during this transition to care and maintenance. The asset will be maintained 
	in a state of readiness whilst we continue to monitor market conditions and 
	consider future options and opportunities for PASAR. Local organic employees 
	will continue to be employed and paid until further notice.  PASAR will 
	continue to engage with our workforce, contractors, the Philippine 
	Government and local community stakeholders.
	
	January 11, 2018 - Operations at 
	Glencore’s Pasar copper smelter have been suspended since last week due to a 
	leakage in the sulfuric acid plant, Metal Bulletin has learned.  
	
	www.metalbulletin.com 
	
	
	August 27, 2017 - The Philippine Associated Smelting and Refining 
	Corporation (Pasar) is due for a 15-day shutdown starting September 12, as 
	it allegedly received several complaints regarding the foul odor emitting 
	from its processing plant inside the Leyte Industrial Development Estate 
	(Lide) in Isabel, Leyte. Lawyer Noli del Rosario, senior vice president for 
	Legal and Corporate Affairs of Pasar, said the shutdown will give way to a 
	“search and explore” activity to find any possible leaks in the plant’s 
	system and equipment. Del Rosario said the Pasar’s anti-pollution protocols 
	are “still in place and working," as he vowed to look into the complaints 
	and address them. People living near the area have been complaining of the 
	stench, believed to be sulfur dioxide discharge, coming from Pasar's plant, 
	saying this poses environmental hazard to the populace. Also, about a 
	hundred workers of its closest neighbor, the Philippine Phospate Fertilizer 
	Corporation (Philpos), said that as per in-house monitoring, the ambient air 
	surrounding Pasar's plant “has strong content of sulfur dioxide” and is 
	apparently “beyond allowable level.” Philphos and affected Lide officials 
	have filed a series of complaints before the regional Environment Management 
	Bureau of the Department of Environment and Natural Resources (DENR), 
	Department of Health, and local government of Isabel for a swift action on 
	the problems caused by the harmful chemical coming from the plant. Asked for 
	comment, Del Rosario said Pasar is committed to complying with all DENR 
	standards and regulations on emissions, including those related to sulfur 
	dioxide (SO2). “In the last month, some quarters have complained of SO2 
	emissions coming from Pasar alleging that these are of 'mild,' 'strong' or 
	'very strong' intensity. These complaints are couched in qualitative and 
	subjective terms incapable of precise measurement,” Del Rosario said. He 
	added: “Pasar has in place a Continuous Emissions Monitoring System or CEMS 
	which records SO2 emissions in real time. With regard to the qualitative 
	complaints raised, Pasar has not exceeded the TWA (Time Weighted Average) 
	taken over any eight hour period.” The DENR, through the Clean Air Act of 
	the Philippines, has set 0.07 ppm allowable level for sulfur dioxide 
	discharge. But observers in the area said the initial ambient air readings 
	at the area go as high as 6 ppm. Health experts said sulfur dioxide is a 
	non-flammable colorless gas that is heavier than oxygen. It has strong and 
	pungent odor that causes irritation to the eyes, conjunctivitis and corneal 
	burns. Long exposure can cause irritation to the mucous membrane of the 
	lungs and respiratory tract, bronchospasm, pulmonary edema, pneumonitis and 
	acute airway obstruction. It can aggravate chronic pulmonary diseases such 
	as asthma. Moderate to high exposure can cause skin irritation, nausea, 
	vomiting, and abdominal pain. Those most at risk of developing problems, if 
	they are exposed to sulfur dioxide, are people with asthma or similar 
	conditions. Glencore, one of the world’s largest diversified commodities 
	trader, owns 78 percent of Pasar. It acquired Pasar from the Philippine 
	government in 1999. The Pasar incident contradicted the environmental policy 
	of Glencore, which assures international and industry-specific environmental 
	standards and requires their assets to undertake detailed risk assessment 
	reviews and identify appropriate mitigation actions. “Our assets continually 
	review their waste management procedures and identify opportunities for 
	improvement, to minimize the impact of the waste we produce,” according to 
	Glencore’s Waste Management Policy.  
	www.sunstar.com.ph
	
	
	January 8, 2014  - Glencore Xstrata’s Pasar copper smelter in the 
	Philippines plans to restart as soon as January 15, after being damaged by 
	Typhoon Haiyan in November, two sources said on Wednesday.  The Pasar 
	plant, majority owned by Glencore, is in Leyte province, southeast of 
	Manila. It has been shut since around Nov. 7.  “Pasar have now told 
	mine suppliers (to expect a) smelter restart Jan 15,” a trader in Europe 
	said.  Another industry source confirmed plans to reopen from mid 
	January.  Pasar produced 98,000 tonnes of copper in 2012. Analysts 
	estimate the nine week shut down will lead to a loss of around 15,000-30,000 
	tonnes of refined copper. Pasar is expected to produce around 155,000 tonnes 
	of refined copper in 2013.
	
	November 11, 2013 - Commodities 
	titan Glencore Xstrata PLC said Monday it has suffered heavy 
	structural damage at Pasar, the Philippines' sole copper smelter, after 
	supertyphoon Haiyan ravaged the central part of Philippines at the 
	weekend."Initial assessments confirm that Pasar has sustained heavy 
	structural damage to its operations," a company spokesman said in an 
	e-mailed statement. "Preliminary estimates put a return to normal operations 
	of at least four to six weeks," he added.Glencore Xstrata began to shut down 
	the copper smelter on Thursday, a day before the supertyphoon, known locally 
	as Yolanda, hit the country. The typhoon was the strongest storm to make 
	landfall in the Philippines since 1991 and has resulted in an official death 
	toll of 255 although the grim hunt for bodies is expected to result in 
	substantially higher numbers. The Red Cross said it had ordered for 10,000 
	body bags."Our thoughts are with those employees and their families who have 
	been impacted by Yolanda," said the Glencore Xstrata spokesman. "Pasar will 
	offer all necessary support where we can," he added.Pasar is 78% owned by 
	Glencore Xstrata, while the remaining 22% is owned by local investors. 
	Copper production at Pasar fell 40% in 2012 due to a fire that halted 
	production for about six months. Pasar has a copper cathode production 
	capacity of 215,000 metric tons a year.
	
	August 19, 2013 - 
	Outotec has been awarded a contract by 
	Philippine Associated Smelting and Refining Company (PASAR) for the 
	modernization of PASAR's copper smelter in the Philippines. The contract 
	value exceeds EUR 12 million and it has been booked in Outotec's third 
	quarter order intake. PASAR's copper smelter is based on Outotec® Flash 
	Smelting technology. The original Outotec® Flash Smelting license dates all 
	the way back to 1977. Over the years PASAR has regularly upgraded the 
	smelter together with Outotec.Outotec's scope of modernization work this 
	time includes equipment deliveries such as modern proprietary concentrate 
	feeding system and burner, process advisor, furnace cooling system and anode 
	casting shop including the supervision services. "PASAR and Outotec 
	long-term relationship is a good example how the smelting technology can 
	evolve by working together. By renovating and upgrading the older generation 
	smelting plants with latest technology developments and our rebuild 
	services, our customers can meet the increasing efficiency and environmental 
	requirements and ensure their competitiveness far in the future", notes 
	Robin Lindahl, head of Outotec's Metals, Energy & Water businesses.
MTPD - Metric Tonne per Day           
STPD - Short Ton per Day
MTPA - Metric Tonne per Annum      STPA - Short Ton per 
Annum
SA - Single Absorption
DA - Double Absorption  
* Coordinates can be used to 
locate plant on Google Earth