{"id":1494,"date":"2026-04-06T17:29:24","date_gmt":"2026-04-06T20:29:24","guid":{"rendered":"https:\/\/pya.cl\/en\/?p=1494"},"modified":"2026-10-26T17:49:10","modified_gmt":"2026-10-26T20:49:10","slug":"expansion-of-the-nitric-acid-and-ammonium-nitrate-plants-in-mejillones-panna-4","status":"publish","type":"post","link":"https:\/\/pya.cl\/en\/2026\/04\/06\/expansion-of-the-nitric-acid-and-ammonium-nitrate-plants-in-mejillones-panna-4\/","title":{"rendered":"Expansion of the nitric acid and ammonium nitrate plants in Mejillones (PANNA 4)"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">The project involved the expansion and modernization of the existing Prillex Am\u00e9rica Industrial Complex through the construction and operation of a new nitric acid and ammonium nitrate plant (PANNA), which increased nitric acid production and, consequently, raised ammonium nitrate production from 450,000 to 800,000 metric tons per year, according to the Environmental Impact Statement.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pares&amp;Alvarez developed the adaptation of the facilities outside the production area to provide the unit with the inputs, supplies, services, and raw materials required for its operation, in the quantities and conditions necessary for its functioning. The project required an investment of $230 million.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The project involved the expansion and modernization of the existing Prillex Am\u00e9rica Industrial Complex through the construction and operation of a new nitric acid and ammonium nitrate plant (PANNA), which increased nitric acid production and, consequently, raised ammonium nitrate production from 450,000 to 800,000 metric tons per year, according to the Environmental Impact Statement. Pares&amp;Alvarez [&hellip;]<\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[11],"tags":[],"class_list":["post-1494","post","type-post","status-publish","format-standard","hentry","category-featured-project"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Ammonium Nitrate Plant Expansion | Pares&amp;Alvarez<\/title>\n<meta name=\"description\" content=\"Engineering and procurement for the new nitric acid and ammonium nitrate plant at ENAEX\u2019s Prillex complex in Mejillones: 450,000 to 800,000 t\/year.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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