{"id":33728,"date":"2026-01-17T13:04:54","date_gmt":"2026-01-17T06:04:54","guid":{"rendered":"https:\/\/dongtam.com.vn\/?p=33728"},"modified":"2026-01-19T13:10:13","modified_gmt":"2026-01-19T06:10:13","slug":"cq-co-and-dong-tams-quality-standards-the-foundation-for-sustainable-construction","status":"publish","type":"post","link":"https:\/\/dongtam.com.vn\/en\/cq-co-and-dong-tams-quality-standards-the-foundation-for-sustainable-construction\/","title":{"rendered":"CQ \u2013 CO AND DONG TAM\u2019S QUALITY STANDARDS: THE FOUNDATION FOR SUSTAINABLE CONSTRUCTION"},"content":{"rendered":"<p data-start=\"303\" data-end=\"712\">In the construction materials industry, product quality and origin are not only technical requirements, but also a measure of customer trust and the foundation of every sustainable construction project. Especially for high-end residential buildings, commercial developments, and public infrastructure, selecting certified materials is a decisive factor affecting durability, safety, and long-term usage value.<\/p>\n<p data-start=\"714\" data-end=\"932\">In this context, the two certifications CQ (Certificate of Quality) and CO (Certificate of Origin) are regarded as important evidence of quality commitment and product transparency in the construction materials sector.<\/p>\n<p data-start=\"934\" data-end=\"995\"><strong data-start=\"934\" data-end=\"995\">CQ \u2013 Certificate of Quality: Ensuring technical standards<\/strong><\/p>\n<p data-start=\"997\" data-end=\"1297\">CQ (Certificate of Quality) is a certification confirming that a product fully meets regulated quality standards. For tiles, CQ demonstrates that the product has been tested for core technical factors such as load-bearing capacity, dimensional stability, color durability, and production consistency.<\/p>\n<p data-start=\"1299\" data-end=\"1598\">These criteria are particularly important for projects that demand high durability and long-term operational performance. Holding CQ certification provides investors, contractors, and consumers with a clear basis for evaluating product quality, helping to reduce risks during construction and usage.<\/p>\n<p data-start=\"1299\" data-end=\"1598\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-33726 size-full\" src=\"https:\/\/dongtam.com.vn\/wp-content\/uploads\/2026\/01\/Bai-3-v2_03.png\" alt=\"\" width=\"900\" height=\"900\" srcset=\"https:\/\/dongtam.com.vn\/wp-content\/uploads\/2026\/01\/Bai-3-v2_03.png 900w, https:\/\/dongtam.com.vn\/wp-content\/uploads\/2026\/01\/Bai-3-v2_03-300x300.png 300w, https:\/\/dongtam.com.vn\/wp-content\/uploads\/2026\/01\/Bai-3-v2_03-150x150.png 150w, https:\/\/dongtam.com.vn\/wp-content\/uploads\/2026\/01\/Bai-3-v2_03-768x768.png 768w, https:\/\/dongtam.com.vn\/wp-content\/uploads\/2026\/01\/Bai-3-v2_03-200x200.png 200w, https:\/\/dongtam.com.vn\/wp-content\/uploads\/2026\/01\/Bai-3-v2_03-320x320.png 320w, https:\/\/dongtam.com.vn\/wp-content\/uploads\/2026\/01\/Bai-3-v2_03-195x195.png 195w\" sizes=\"(max-width: 900px) 100vw, 900px\" \/><\/p>\n<p data-start=\"1600\" data-end=\"1669\"><strong data-start=\"1600\" data-end=\"1669\">CO \u2013 Certificate of Origin: Transparency and brand responsibility<\/strong><\/p>\n<p data-start=\"1671\" data-end=\"1964\">Alongside quality, product origin is an increasingly important factor in the construction materials market. CO (Certificate of Origin) is a certification that verifies the origin of goods, ensuring that products are manufactured at the registered location and comply with relevant regulations.<\/p>\n<p data-start=\"1966\" data-end=\"2255\">For enterprises, CO is not only a legal requirement but also a reflection of responsibility and credibility throughout the production process. For consumers and investors, products with clear origins increase confidence in selection and contribute to building long-term trust in the brand.<\/p>\n<p data-start=\"1966\" data-end=\"2255\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-33724 size-full\" src=\"https:\/\/dongtam.com.vn\/wp-content\/uploads\/2026\/01\/Bai-3-v2_04.png\" alt=\"\" width=\"900\" height=\"900\" srcset=\"https:\/\/dongtam.com.vn\/wp-content\/uploads\/2026\/01\/Bai-3-v2_04.png 900w, https:\/\/dongtam.com.vn\/wp-content\/uploads\/2026\/01\/Bai-3-v2_04-300x300.png 300w, https:\/\/dongtam.com.vn\/wp-content\/uploads\/2026\/01\/Bai-3-v2_04-150x150.png 150w, https:\/\/dongtam.com.vn\/wp-content\/uploads\/2026\/01\/Bai-3-v2_04-768x768.png 768w, https:\/\/dongtam.com.vn\/wp-content\/uploads\/2026\/01\/Bai-3-v2_04-200x200.png 200w, https:\/\/dongtam.com.vn\/wp-content\/uploads\/2026\/01\/Bai-3-v2_04-320x320.png 320w, https:\/\/dongtam.com.vn\/wp-content\/uploads\/2026\/01\/Bai-3-v2_04-195x195.png 195w\" sizes=\"(max-width: 900px) 100vw, 900px\" \/><\/p>\n<p data-start=\"2257\" data-end=\"2320\"><strong data-start=\"2257\" data-end=\"2320\">CQ \u2013 CO and their role in sustainable construction projects<\/strong><\/p>\n<p data-start=\"2322\" data-end=\"2624\">In practice, CQ and CO have become key criteria in material selection for many projects nationwide. Beyond supporting acceptance procedures, bidding processes, and quality management, these certifications help optimize maintenance costs and enhance the durability and stability of structures over time.<\/p>\n<p data-start=\"2626\" data-end=\"2800\">Using materials with full CQ \u2013 CO certification is a necessary step to ensure that projects meet increasingly stringent technical, legal, and quality standards in the market.<\/p>\n<p data-start=\"2802\" data-end=\"2865\"><strong data-start=\"2802\" data-end=\"2865\">Quality standards &amp; quality control system at Dongtam Group<\/strong><\/p>\n<p data-start=\"2867\" data-end=\"3220\">At Dongtam Group, CQ and CO are not standalone elements but integral parts of a comprehensive quality standards and control system applied throughout the entire production process. Dongtam tiles are manufactured domestically on modern production lines and undergo multiple rigorous inspection stages to ensure stability and consistency in every product.<\/p>\n<p data-start=\"3222\" data-end=\"3495\">This quality standard system enables Dongtam to strictly control everything from raw materials and manufacturing processes to final products, ensuring that every product released to the market is accompanied by complete CQ \u2013 CO certification in accordance with regulations.<\/p>\n<p data-start=\"3497\" data-end=\"3709\">This consistency in standards and quality control has made Dongtam tiles a trusted choice for numerous projects, from high-end residential developments to commercial projects and public infrastructure nationwide.<\/p>\n<p data-start=\"3497\" data-end=\"3709\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-33722 size-full\" src=\"https:\/\/dongtam.com.vn\/wp-content\/uploads\/2026\/01\/The-manor-central-park-Ha-Noi-11-1.jpg\" alt=\"\" width=\"2560\" height=\"1199\" srcset=\"https:\/\/dongtam.com.vn\/wp-content\/uploads\/2026\/01\/The-manor-central-park-Ha-Noi-11-1.jpg 2560w, https:\/\/dongtam.com.vn\/wp-content\/uploads\/2026\/01\/The-manor-central-park-Ha-Noi-11-1-300x141.jpg 300w, https:\/\/dongtam.com.vn\/wp-content\/uploads\/2026\/01\/The-manor-central-park-Ha-Noi-11-1-1024x480.jpg 1024w, https:\/\/dongtam.com.vn\/wp-content\/uploads\/2026\/01\/The-manor-central-park-Ha-Noi-11-1-768x360.jpg 768w, https:\/\/dongtam.com.vn\/wp-content\/uploads\/2026\/01\/The-manor-central-park-Ha-Noi-11-1-1536x719.jpg 1536w, https:\/\/dongtam.com.vn\/wp-content\/uploads\/2026\/01\/The-manor-central-park-Ha-Noi-11-1-2048x959.jpg 2048w, https:\/\/dongtam.com.vn\/wp-content\/uploads\/2026\/01\/The-manor-central-park-Ha-Noi-11-1-845x396.jpg 845w, https:\/\/dongtam.com.vn\/wp-content\/uploads\/2026\/01\/The-manor-central-park-Ha-Noi-11-1-553x259.jpg 553w\" sizes=\"(max-width: 2560px) 100vw, 2560px\" \/><\/p>\n<p style=\"text-align: right;\" data-start=\"3711\" data-end=\"3774\"><em>The Manor Central Park High-End Real Estate Project \u2013 Hanoi<\/em><\/p>\n<p data-start=\"3776\" data-end=\"3828\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-33720 size-full\" src=\"https:\/\/dongtam.com.vn\/wp-content\/uploads\/2026\/01\/Trung-tam-doi-moi-sang-tao-tam-5-2-scaled.jpg\" alt=\"\" width=\"2560\" height=\"1917\" srcset=\"https:\/\/dongtam.com.vn\/wp-content\/uploads\/2026\/01\/Trung-tam-doi-moi-sang-tao-tam-5-2-scaled.jpg 2560w, https:\/\/dongtam.com.vn\/wp-content\/uploads\/2026\/01\/Trung-tam-doi-moi-sang-tao-tam-5-2-300x225.jpg 300w, https:\/\/dongtam.com.vn\/wp-content\/uploads\/2026\/01\/Trung-tam-doi-moi-sang-tao-tam-5-2-1024x767.jpg 1024w, https:\/\/dongtam.com.vn\/wp-content\/uploads\/2026\/01\/Trung-tam-doi-moi-sang-tao-tam-5-2-768x575.jpg 768w, https:\/\/dongtam.com.vn\/wp-content\/uploads\/2026\/01\/Trung-tam-doi-moi-sang-tao-tam-5-2-1536x1150.jpg 1536w, https:\/\/dongtam.com.vn\/wp-content\/uploads\/2026\/01\/Trung-tam-doi-moi-sang-tao-tam-5-2-2048x1534.jpg 2048w, https:\/\/dongtam.com.vn\/wp-content\/uploads\/2026\/01\/Trung-tam-doi-moi-sang-tao-tam-5-2-120x90.jpg 120w\" sizes=\"(max-width: 2560px) 100vw, 2560px\" \/><\/p>\n<p style=\"text-align: right;\" data-start=\"3776\" data-end=\"3828\"><em>National Innovation Center (NIC) Hoa Lac Project<\/em><\/p>\n<p data-start=\"3830\" data-end=\"3871\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-33715 size-full\" src=\"https:\/\/dongtam.com.vn\/wp-content\/uploads\/2026\/01\/San-bay-Quoc-te-Noi-Bai-1-scaled.jpg\" alt=\"\" width=\"2560\" height=\"1707\" srcset=\"https:\/\/dongtam.com.vn\/wp-content\/uploads\/2026\/01\/San-bay-Quoc-te-Noi-Bai-1-scaled.jpg 2560w, https:\/\/dongtam.com.vn\/wp-content\/uploads\/2026\/01\/San-bay-Quoc-te-Noi-Bai-1-300x200.jpg 300w, https:\/\/dongtam.com.vn\/wp-content\/uploads\/2026\/01\/San-bay-Quoc-te-Noi-Bai-1-1024x683.jpg 1024w, https:\/\/dongtam.com.vn\/wp-content\/uploads\/2026\/01\/San-bay-Quoc-te-Noi-Bai-1-768x512.jpg 768w, https:\/\/dongtam.com.vn\/wp-content\/uploads\/2026\/01\/San-bay-Quoc-te-Noi-Bai-1-1536x1024.jpg 1536w, https:\/\/dongtam.com.vn\/wp-content\/uploads\/2026\/01\/San-bay-Quoc-te-Noi-Bai-1-2048x1365.jpg 2048w, https:\/\/dongtam.com.vn\/wp-content\/uploads\/2026\/01\/San-bay-Quoc-te-Noi-Bai-1-390x260.jpg 390w\" sizes=\"(max-width: 2560px) 100vw, 2560px\" \/><\/p>\n<p style=\"text-align: right;\" data-start=\"3830\" data-end=\"3871\"><em>Noi Bai International Airport Project<\/em><\/p>\n<p data-start=\"3873\" data-end=\"3908\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-33717 size-full\" src=\"https:\/\/dongtam.com.vn\/wp-content\/uploads\/2026\/01\/anh-tantrao-2023-logo5-1.png\" alt=\"\" width=\"1920\" height=\"1080\" srcset=\"https:\/\/dongtam.com.vn\/wp-content\/uploads\/2026\/01\/anh-tantrao-2023-logo5-1.png 1920w, https:\/\/dongtam.com.vn\/wp-content\/uploads\/2026\/01\/anh-tantrao-2023-logo5-1-300x169.png 300w, https:\/\/dongtam.com.vn\/wp-content\/uploads\/2026\/01\/anh-tantrao-2023-logo5-1-1024x576.png 1024w, https:\/\/dongtam.com.vn\/wp-content\/uploads\/2026\/01\/anh-tantrao-2023-logo5-1-768x432.png 768w, https:\/\/dongtam.com.vn\/wp-content\/uploads\/2026\/01\/anh-tantrao-2023-logo5-1-1536x864.png 1536w\" sizes=\"(max-width: 1920px) 100vw, 1920px\" \/><\/p>\n<p style=\"text-align: right;\" data-start=\"3873\" data-end=\"3908\"><em>Flamingo Heritage Tan Trao City<\/em><\/p>\n<p data-start=\"3910\" data-end=\"4229\">In an increasingly competitive construction materials market, CQ \u2013 CO and quality standards are not merely procedural requirements, but guarantees of brand credibility. Choosing certified products provides peace of mind for consumers and investors while contributing to the creation of sustainable structures over time.<\/p>\n<p data-start=\"4231\" data-end=\"4352\"><strong data-start=\"4231\" data-end=\"4352\">Dongtam Tiles \u2013 a guarantee of quality, building trust through reputation and sustainability for over half a century.<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the construction materials industry, product quality and origin are not only technical requirements, but also a measure of customer trust and the foundation of every sustainable construction project. Especially for high-end residential buildings, commercial developments, and public infrastructure, selecting certified materials is a decisive factor affecting durability, safety, and long-term usage value. In this [&hellip;]<\/p>\n","protected":false},"author":26,"featured_media":33726,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[270251],"tags":[],"class_list":["post-33728","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowledge-sharing"],"acf":[],"_links":{"self":[{"href":"https:\/\/dongtam.com.vn\/en\/wp-json\/wp\/v2\/posts\/33728"}],"collection":[{"href":"https:\/\/dongtam.com.vn\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dongtam.com.vn\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dongtam.com.vn\/en\/wp-json\/wp\/v2\/users\/26"}],"replies":[{"embeddable":true,"href":"https:\/\/dongtam.com.vn\/en\/wp-json\/wp\/v2\/comments?post=33728"}],"version-history":[{"count":1,"href":"https:\/\/dongtam.com.vn\/en\/wp-json\/wp\/v2\/posts\/33728\/revisions"}],"predecessor-version":[{"id":33729,"href":"https:\/\/dongtam.com.vn\/en\/wp-json\/wp\/v2\/posts\/33728\/revisions\/33729"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/dongtam.com.vn\/en\/wp-json\/wp\/v2\/media\/33726"}],"wp:attachment":[{"href":"https:\/\/dongtam.com.vn\/en\/wp-json\/wp\/v2\/media?parent=33728"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dongtam.com.vn\/en\/wp-json\/wp\/v2\/categories?post=33728"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dongtam.com.vn\/en\/wp-json\/wp\/v2\/tags?post=33728"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}