{
  "@context": "https://schema.org",
  "@graph": [
    {
      "@type": ["LocalBusiness", "Organization", "Plumber", "HVACBusiness", "ElectricalContractor"],
      "@id": "https://www.aot.com.sg/#organization",
      "name": "Alpha & Omega Trinity Pte Ltd",
      "alternateName": ["AOT Trinity", "AOT"],
      "description": "Singapore PUB-licensed plumbing, water tank cleaning, and M&E contractor with BCA ME01/ME06/ME12 certifications and BiZSAFE Level 3.",
      "url": "https://www.aot.com.sg",
      "logo": "https://www.aot.com.sg/images/aot-logo.png",
      "image": "https://www.aot.com.sg/images/aot-office.jpg",
      "telephone": ["+6598809964", "+6568162462"],
      "email": "sales@aot.com.sg",
      "address": {
        "@type": "PostalAddress",
        "streetAddress": "32 Old Toh Tuck Road, I.Biz Centre #03-11",
        "addressLocality": "Singapore",
        "postalCode": "597658",
        "addressCountry": "SG"
      },
      "geo": {
        "@type": "GeoCoordinates",
        "latitude": 1.3342,
        "longitude": 103.7654
      },
      "openingHoursSpecification": [
        {
          "@type": "OpeningHoursSpecification",
          "dayOfWeek": ["Monday","Tuesday","Wednesday","Thursday","Friday","Saturday"],
          "opens": "09:00",
          "closes": "19:00"
        }
      ],
      "identifier": [
        {"@type": "PropertyValue", "name": "UEN", "value": "201215586K"},
        {"@type": "PropertyValue", "name": "PUB License", "value": "WS16882018"},
        {"@type": "PropertyValue", "name": "BCA Grade", "value": "ME01, ME06, ME12"},
        {"@type": "PropertyValue", "name": "BiZSAFE Level", "value": "Level 3 Certificate E18947"}
      ],
      "hasCredential": [
        {"@type": "EducationalOccupationalCredential", "name": "PUB Licensed Water Service Plumber WS16882018", "credentialCategory": "Government Licence", "recognizedBy": {"@type": "Organization", "name": "Public Utilities Board Singapore"}},
        {"@type": "EducationalOccupationalCredential", "name": "BCA ME06 Fire Prevention and Protection", "credentialCategory": "Government Grade", "recognizedBy": {"@type": "Organization", "name": "Building and Construction Authority Singapore"}},
        {"@type": "EducationalOccupationalCredential", "name": "BiZSAFE Level 3 E18947", "credentialCategory": "Safety Certification", "recognizedBy": {"@type": "Organization", "name": "Workplace Safety and Health Council Singapore"}}
      ],
      "founder": {
        "@type": "Person",
        "name": "Lam Kiem Choon",
        "jobTitle": "Managing Director & PUB Licensed Plumber",
        "identifier": {"@type": "PropertyValue", "name": "PUB License", "value": "WS16882018"}
      },
      "areaServed": {"@type": "Country", "name": "Singapore"},
      "serviceType": ["Water Tank Cleaning","Plumbing","Grease Trap Cleaning","Pump Services","Water Heater Installation","Aircon Servicing","Electrical LEW","Emergency Plumbing","Fire Safety Pump","Industrial Pump"],
      "sameAs": [
        "https://www.aotrinitysg.com",
        "https://aot-tank.com",
        "https://aot-heater.com",
        "https://aot-pump.com",
        "https://aot-ac.com",
        "https://aot-elec.com",
        "https://aot-plumbing.com"
      ]
    }
  ]
}