Korea Tenders - 15 July 2026 (Page 3 of 11)

13836116 Personal information consulting and technical support services Deadline29 Jul 2026 13836117 Establishment of a cutting-edge smart classroom in the semiconductor education building of the Semiconductor Specialized University Project Group Deadline29 Jul 2026 13836118 Laboratory safety environment improvement work (construction) Deadline21 Jul 2026 13836119 명당초 장애인용 승강기 증축 전기공사 Deadline21 Jul 2026 13836120 Ochang 2nd industrial complex park green space management construction (buffer green space, landscape green space) Deadline21 Jul 2026 13836122 Sewage pipe installation work in Bongdeok 2 and 3-dong (3rd phase) Purchase of government-supplied materials (recycled sand, recycled aggregate) Deadline22 Jul 2026 13836123 Ochang 1st Industrial Complex Park and Green Space Management Construction (Buffer Green Space, Landscape Green Space Section 1 3) Deadline21 Jul 2026 13836124 Event agency service for the 2026 Jeonnam Gwangju Camping and Tourism Expo Deadline29 Jul 2026 13836125 Replacement work for old pipes in Samhwan Apartment, Guun-dong Deadline22 Jul 2026 13836126 Account aged water supply maintenance project priority pipe network maintenance construction Sangju safety supervision service Deadline26 Aug 2026 13836127 (Veterinary Sidam) Manufacturing and installation of government-supplied materials (deodorizer) for Onsan sewage treatment facility expansion project Deadline15 Jul 2026 13836129 Ochang 1st Industrial Complex Park and Green Space Management Construction (Buffer Green Space, Landscape Green Space Section 1 2) Deadline21 Jul 2026 13836130 [Re-announcement] Bidding to select 1 type and 1 item for the production of scientific promotional materials and broadcast content to promote research and development results Deadline29 Jul 2026 13836131 26-N-Manufacture of military uniforms (2 types including companion uniforms) Deadline03 Aug 2026 13836132 Water rescue and survival swimming qualification acquisition class training operation service Deadline27 Jul 2026 13836134 Third-party unit price contract for excellent procurement items (2022213, premises broadcasting equipment) Deadline21 Jul 2026 13836135 Sangdong-myeon Basic Living Base Creation Project (Phase 2) Purchase of coin washing machine, dryer and 2 other types Deadline21 Jul 2026 13836136 (Re-announcement) Hanyang University ERICA Intelligent Robot Innovation Convergence University Business Group Purchase of humanoid robot for education Deadline21 Jul 2026 13836137 Korea Polytechnic University Seoul Jeongsu Campus High-Tech Industry Department (Industrial Safety Engineering Department) Construction (Telecommunications) Deadline21 Jul 2026 13836138 Bidding agency (customized idea support project for young people returning to farming, Korean beef barn improvement) Deadline21 Jul 2026 13836139 2026 Carbon Neutral Facility Investment Support Project - Inverter Type Air Compressor Deadline27 Jul 2026 13836140 Korea Polytechnic University Seoul Jeongsu Campus High-Tech Industry Department (Industrial Safety Engineering Department) New Construction (Electrical) Deadline21 Jul 2026 13836141 Ochang 1st Industrial Complex Park and Green Space Management Construction (Buffer Green Space, Landscape Green Space, Ecological Corridor Section 2 3) Deadline21 Jul 2026 13836143 Gwangju Seoseok Elementary School Bathroom Repair Design Service Negotiated Contract Information Notice Deadline21 Jul 2026 13836144 Gyeonggi Provincial Office of Education Future Unification Education Center bus rental service in the second half of 2026 Deadline21 Jul 2026 13836145 [Urgent] Supervision service for Seoul student future competency diagnosis system operation and function improvement (2nd year) Deadline27 Jul 2026 13836146 Domestic waste disposal service for the improvement of living conditions in vulnerable areas in Naegal district Deadline15 Jul 2026 13836147 Announcement of submission of small quotation for purchase of equipment (co-pressure machine) of Automation Machinery Department of Daegu Technical High School Deadline21 Jul 2026 13836148 Deokhyeon-ri Senior Center new construction (construction) (private bidding agency) Deadline21 Jul 2026 13836149 [2026 RISE (New Industry)] Yeonsung University certification acquisition platform operation and online practical training environment construction service Deadline27 Jul 2026 13836151 2026 Korean Open Online Course (K-MOOC) new course development project Deadline29 Jul 2026 13836152 Repair service in preparation for regular inspection of Angel No. 2 Deadline22 Jul 2026 13836153 2026 unit price contract for the removal of trees in the residential area and landscape (western area) Deadline22 Jul 2026 13836154 Circulating raw material agglomeration structure analysis equipment Deadline27 Jul 2026 13836155 Smart Aqua Farm Test Bed Construction Project Feasibility Review and Basic Plan Establishment Service Deadline29 Jul 2026 13836156 Inje University College of Medicine educational content visualization and motion graphics/3D production service Deadline29 Jul 2026 13836157 Automation of road status announcement statistics generation and operation and maintenance of road and maintenance status system Deadline15 Jul 2026 13836158 Manufacture, purchase and installation of supplied materials (closed switchboard) for Goheung Naebong district drainage improvement project Deadline15 Jul 2026 13836263 Units 2 to 4 differentiator reducer carry-out maintenance work Deadline23 Jul 2026 13836264 345kV Saeul S/Y power communication facility construction Deadline22 Jul 2026 13836266 154kV Jain-Siji S/S optical cable facility construction Deadline22 Jul 2026 13836267 Integrated design service for Jeonju Solnago and Sangsan High School underground construction work Deadline23 Jul 2026 13836268 VLF diagnosis service for Yangju Techno Valley distribution cable installation work Deadline22 Jul 2026 13836269 [Emergency] Cheongpyeong pumping water power supply and demand peak period safety monitoring patrol service Deadline21 Jul 2026 13836270 500kV HVDC East Coast-Dong Seoul T/L Construction (Phase 2) Responsibility Management Service (PQ) Deadline21 Aug 2026 13836272 Construction waste disposal service for 500MW Shinbupyeong BTB conversion station expansion work Deadline22 Jul 2026 13836273 345㎸ Shinjeongbu STATCOM power communication construction supervision service Deadline22 Jul 2026 13836274 345㎸ Gunsan-Shin Gimje, etc. 2 T/L lightning arrester and vertical intermediate clamp installation work responsibility management service (PQ) Deadline21 Aug 2026 13836275 2026 KEPCO E&C bus rental service Deadline31 Jul 2026 13836278 Strainer_2267714_ Deadline16 Jul 2026 13836284 Water intake security screen and civil facility maintenance work Deadline22 Jul 2026 13836292 345kV Sinjeongeup S/S ICT field construction project responsible management service PQ Deadline03 Sep 2026 13836306 Elbow_2167283_ and 7 other types Deadline14 Jul 2026 13837008 Information Strategy Plan (ISP) service for establishing distributed energy integrated monitoring system (Suui Sidam) Deadline15 Jul 2026 13837011 Purchase and installation of air conditioning and heating equipment for 4 schools including Dongju Middle School (Mandeok Middle School, Myeongho Elementary School, and Sincheon El Deadline21 Jul 2026 13837055 2026 Vocational High School Job Search, Job Acquisition, Business Consignment Service Deadline27 Jul 2026 13837056 Pouch stacking equipment (re-announcement) Deadline20 Jul 2026 13837057 Nammyeong Elementary School and other 2 schools (Busan Gangseo High School) educational facility space restructuring and construction disaster prevention technical guidance service Deadline21 Jul 2026 13837058 Detailed design service for defective water pipe maintenance work at Seosu Ai 1, 2-gil and 1 other location Deadline21 Jul 2026 13837059 Integrated purchase of snacks for public kindergarten after-school programs and elementary school child care classes in the second half of the 2026 school year in 5 regions Deadline27 Jul 2026 13837060 Gangdong Fire Station complex training facility conversion project Deadline22 Jul 2026 13837061 Integrated purchase of snacks for public kindergarten after-school programs and elementary school care classes in the second half of the 2026 school year in 4 regions Deadline27 Jul 2026 13837062 [Medical Device] Purchase of ECMO (Extracorporeal Membrane Oxygenation) System (re-announcement) Deadline20 Jul 2026 13837063 Design service for seismic reinforcement construction of Seodo Elementary, Middle and High School elementary school building and cafeteria Deadline21 Jul 2026 13837064 Veterinary Drug Prototype Production Support Center - Factory Clean Equipment System (Modified) Deadline20 Jul 2026 13837065 General-purpose computer analysis pre-processing software maintenance (re-announcement) Deadline20 Jul 2026 13837066 Integrated purchase of snacks for public kindergarten after-school programs and elementary school child care classes in the second half of the 2026 school year in 3 regions Deadline27 Jul 2026 13837067 Yongin Peaceful Forest private sewage treatment facility improvement work (mechanical work) Deadline21 Jul 2026 13837068 Daegu Haeol High School educational space securing facility construction Deadline22 Jul 2026 13837069 [Medical Device] Purchase of Continuous Renal Replacement Therapy (re-announcement) Deadline20 Jul 2026 13837070 Purchase and installation of logistics AI-based return logistics automation robot sorter system Deadline23 Jul 2026 13837071 Integrated purchase of snacks for public kindergarten after-school programs and elementary school child care classes in the second half of the 2026 school year, Region 2 Deadline27 Jul 2026 13837072 [Medical Device] Purchase of Programmable Cell Freezing System (expansion of limit, re-announcement) Deadline20 Jul 2026 13837073 Design service for Josan Elementary School Teacher Building exterior wall improvement work Deadline21 Jul 2026 13837074 Wondong Elementary School cafeteria modernization electrical work Deadline22 Jul 2026 13837075 [Research equipment] Purchase of Microplate Reader (limit expansion) Deadline22 Jul 2026 13837076 Integrated purchase of snacks for public kindergarten after-school programs and elementary school care classes in the second half of the 2026 school year, Region 1 Deadline27 Jul 2026 13837077 Seoul Munchang Elementary School main building and back building restroom improvement construction construction waste disposal service Deadline21 Jul 2026 13837078 AI-based on-site welding PAUT inspection and judgment automation technology development research Deadline27 Aug 2026 13837079 Prototype production service for environmental information measuring device based on physical and virtual sensors Deadline27 Jul 2026 13837080 ITB Asia 2026 Gyeongju Promotion Center Booth Production and Operation Service Deadline04 Aug 2026 13837081 Purchase and installation of electric heat pump air conditioning and heating equipment for 3 schools including Guhak Elementary School (Donggung Elementary School, Modong Middle Sc Deadline21 Jul 2026 13837082 Purchase of public bus (large van) for Jeju branch of Chungcheongbuk-do Maritime Education Center Deadline27 Jul 2026 13837083 Seongho High School gym repair and electrical work Deadline22 Jul 2026 13837084 Yongin Peaceful Forest private sewage treatment facility improvement work (electrical work) Deadline21 Jul 2026 13837085 Finding and linking employment opportunities in the forest field Deadline27 Jul 2026 13837086 Daegu Yucheon Elementary School and 2 other schools (Hansol Elementary School, Hanssem Elementary School) environmental improvement mechanical equipment construction Deadline21 Jul 2026 13837087 Korea Petroleum Quality and Distribution Authority Petroleum Integrated Control Center Construction Supervision and Personal Information Impact Assessment Service Deadline27 Jul 2026 13837088 Daegu Foreign Language High School and 2 other schools (Gyeongdeok Girls' High School, Dowon High School) Sunshine Connection School Project electrical design service Deadline21 Jul 2026 13837089 Construction waste disposal service for space restructuring and remodeling work at Yangjeong Elementary School in Ulsan (intermediate treatment - waste asphalt concrete) (continuin Deadline21 Jul 2026 13837090 Daegu Institute of Technology College Innovation Support Project Park Golf System Construction Deadline28 Jul 2026 13837091 Construction disaster prevention technical guidance service for the installation of government-supplied materials (metal paving) for Hwajam Elementary School and other 2 bridges (G Deadline21 Jul 2026 13837092 High-power laser diode with reduced smile pattern Deadline20 Jul 2026 13837093 Security light installation work in Pungsan Taesaro, Pungsan-eup (in front of Pungsan 119 Safety Center) Deadline21 Jul 2026 13837094 2026 2nd Glocal JDP (Joint Development Project) WindTech-15MW floating offshore wind power mooring line and dynamic power cable coupling analysis results based on classification ru Deadline27 Jul 2026 13837095 Consignment service for building history education archive materials and operating contests Deadline27 Jul 2026 13837096 (Emergency) Purchase of automatic elemental analyzer for comprehensive laboratory _ Simultaneous bidding at standard price (bidding agency) Deadline27 Jul 2026 13837097 Housing market analysis and research improvement service Deadline27 Jul 2026 13837098 [Re-announcement] Construction project management service for Ulsan Yangjeong Elementary School space restructuring and remodeling project (continuing expenses) Deadline20 Jul 2026 13837099 Type 1 project to support commercialization of AI-based end products in 2026 Deadline29 Jul 2026 13837100 [Urgent] (Tentative name) Yeoju Special School new construction electrical work (continuing expenses) Deadline21 Jul 2026 13837101 Production of 2027 Industrial Accident Prevention Promotional Calendar Deadline28 Jul 2026 13837139 [Emergency] Ulsan Yangjeong Elementary School space restructuring, remodeling, purchase and installation of air conditioning and heating (continuing expenses) Deadline20 Jul 2026 13837140 Vacuum heating furnace for in-situ high-temperature synchrotron radiation accelerator (re-announcement) Deadline20 Jul 2026 13837141 Announcement of quotation submission for construction of safe boarding and disembarking circuit installation at Cheonan Cheongryong Elementary School for the 2026 school year Deadline23 Jul 2026 13837142 Ulsan Yangjeong Elementary School spatial restructuring and remodeling project design intent implementation service (continuing fee) Deadline16 Jul 2026 13837143 Microwave sample preparation system (re-announcement) Deadline20 Jul 2026 13837144 Catholic Kwandong University wireless authentication system replacement business selection bid Deadline29 Jul 2026 13837145 Korea Petroleum Quality & Distribution Authority’s Petroleum Integrated Control Center Construction PMO Service Deadline27 Jul 2026 13837146 [Emergency] Purchase and installation (change) of air conditioners to improve the educational environment during warming Deadline20 Jul 2026 13837147 Information education platform (digital knowledge floor) function improvement service Deadline28 Jul 2026 13837148 Foreign capital procurement request (fully automatic segment analyzer) Deadline28 Jul 2026 13837149 Construction of a public knowledge industry center in Andong City, purchase of cargo elevator Deadline21 Jul 2026 13837150 Thermal expansion coefficient meter (re-announcement) Deadline20 Jul 2026 13837151 Operation service for the 17th Gyeongsangbuk-do Office of Education Education Administrator One Mind Sports Competition Deadline21 Jul 2026 13837152 Non-destructive testing service for rail welds on Lines 5 to 8 in 2026 Deadline22 Jul 2026 13837197 Waste disposal service for Shinyeon Middle School and 3 schools (Donggyo Elementary School, Suri Elementary School, Sangam High School) Deadline21 Jul 2026 13837198 Euljiro 4-ga (5) Station and 1 station substation improvement construction work Deadline22 Jul 2026 13837199 National tax, non-national tax income arrears management group group accident insurance service Deadline22 Jul 2026 13837200 Joan-myeon public library construction project construction (emergency) Deadline20 Jul 2026 13837201 (Tentative name) Construction disaster prevention technical guidance and other services for the new electrical, communication, and firefighting construction of Sambong Middle Schoo Deadline21 Jul 2026 13837202 Announcement of designation of safety inspection agency for 「Hapcheonho Nonghyup Extension Construction」 Deadline21 Jul 2026 13837203 Demolition work on a house damaged by forest fire (373-2 Yonggye-ri) Deadline21 Jul 2026 13837204 Conducted Rail Plus System personal information impact assessment Deadline23 Jul 2026 13837205 Production and purchase of team uniforms for the Jeonnam-Gwangju Unified Special City athletes for the 107th National Sports Festival Deadline29 Jul 2026 13837206 Access control gate and auxiliary facility maintenance service Deadline22 Jul 2026 13837207 Purchase a license to use the shared document editing program Majuon in 2026 Deadline21 Jul 2026 13837208 Gyeongsangbuk-do social solidarity economy policy establishment research service Deadline04 Aug 2026 13837209 Daegu Deokin Elementary School environmental improvement and archery range expansion mechanical equipment construction Deadline21 Jul 2026 13837210 Annual unit price contract for computer consumables in 2026 Deadline27 Jul 2026 13837211 Road visual inspection service to prevent ground subsidence in Jinju City in 2026 Deadline21 Jul 2026 13837212 Purchase of bond strength tester (BOND TESTER) Deadline30 Jul 2026 13837213 Design service for heating and cooling improvement work for Sangdong Middle School and 2 schools (Bucheon Suju Elementary School and Kkachiul Elementary School) (continuing fee) Deadline21 Jul 2026 13837214 Chogok Stream (Chogok District 2) River Disaster Prevention Project Construction Waste Disposal Service (3rd) Deadline22 Jul 2026 13837215 Establishment of framework verification equipment for robot platform research and development Deadline16 Jul 2026 13837216 Sejong Lake/Central Park weeding/weeding service Deadline22 Jul 2026 13837244 Support project for villages around Obong Reservoir (Wangsan Hanok Village painting and blind installation work) Deadline15 Jul 2026 13837245 Neurointerventional therapy device loading machine system Deadline15 Jul 2026 13837246 Components for confirming acoustic emission process signals and verifying reference signals Deadline15 Jul 2026 13837247 flame detector Deadline15 Jul 2026 13838175 Bidding notice for selection of traffic safety facility installation construction company Deadline29 Jul 2026 13838176 Cheongun Middle Pavement Improvement and Other Construction Deadline16 Jul 2026 13838216 Rural road (Dongnae-myeon Myeon Route 101) widening and paving work asbestos demolition work Deadline22 Jul 2026 13838219 2026 Beolgyo Yeongdeung Dupyeong Village Farm Road Pavement Construction Deadline22 Jul 2026 13838470 Opening of farm road in Daepyeong 2-ri, Unsu-myeon Deadline22 Jul 2026 13838471 2026 Main Forest Road Facility Construction (Tongdong Forest Road) Deadline22 Jul 2026 13838472 Wolgok-ro~Namdaegu IC bypass traffic (lane) system improvement work Deadline22 Jul 2026 13838473 2026 Yeongtong-gu Road Maintenance Construction - Area 1 (3rd) Deadline22 Jul 2026 13838753 Asphalt overlay construction for Deokgok Island Line 2 (Nori Reservoir) and 1 other location Deadline22 Jul 2026 13838756 Gyeongsangbuk-do Governor Sangju ~ Provincial Office New Town Road Construction Work Jijangjeonju Construction Deadline31 Jul 2026 13838757 Farm road construction between Dalseo and Changpyeong Deadline21 Jul 2026 13838818 J-GRIDCORE Center construction (construction) Deadline30 Jul 2026 13838819 Nongso-Gangdong road opening electrical work (Section 1) Deadline23 Jul 2026 13838993 Forest road structural improvement and repair work in 2026 Deadline22 Jul 2026 13838995 Goesan Traditional Market Public Parking Lot Renovation Work Deadline22 Jul 2026 13838997 2026 Urban planning road expansion construction in the children’s protection area (Section 1) Deadline22 Jul 2026 13838998 (Re-announcement) Seohwaseong Agricultural Cooperative Maesong Agricultural Support Center Civil Engineering Construction Bidding Notice Deadline21 Jul 2026 13839494 Seoul Dongui Elementary School Teacher Building and Information Center Toilet Improvement Construction Deadline20 Jul 2026 13839495 Purchase and installation of government-supplied materials (storage batteries) for electric work, replacement of old uninterruptible power supply in Jeonbuk Special Self-Governing Deadline22 Jul 2026 13839496 Hinet Andong Galjeon hydrogen charging station construction (architecture, civil engineering) Deadline31 Jul 2026 13839497 (Tentative name) Seonam School new construction electrical construction design service Deadline20 Jul 2026 13839498 Announcement of guidance on submission of construction project management service execution plan and project performance evaluation report, including acting supervision of Solmoe P Deadline29 Jul 2026 13839499 (Tentative name) Seonam School new construction mechanical equipment construction design service Deadline20 Jul 2026 13839500 Creation of a pilot complex for low-carbon dry paddy harrowing rice cultivation in 2026 - Rotavator, automatic leveling system (agency) Deadline24 Jul 2026 13839501 Drainage pipe construction work for Sangdae Village, Unhwa-ri, Onyang-eup Deadline22 Jul 2026 13839502 Precise safety inspection and performance evaluation service for Gyeongan Stream river facilities in 2026 Deadline21 Jul 2026 13839503 Water pump building start-up unit condenser and reactor replacement work Deadline21 Jul 2026 13839504 [Private agency] 「52nd Yeongcheon Culture and Arts Festival」 operation agency service - contract through negotiation Deadline29 Jul 2026 13839773 Facility repair work in Hwaseo District 1 and 6 other locations on National Route 28 Deadline23 Jul 2026 13839774 2026 [Gongju] National Road 32 Yeongjeong Bridge 2 repair and reinforcement work Deadline22 Jul 2026 13839777 Bibong-Maesong Urban Expressway 2026 Pavement Repair Work (LMC, Concrete) Deadline23 Jul 2026 13839786 2026 2nd annual road marking repainting project Deadline23 Jul 2026 13840057 Geumwangyu structural reinforcement and environmental improvement mechanical equipment construction, purchase and installation of air conditioners Deadline23 Jul 2026 13840058 Clean air conditioning system and equipment design service for KTC Ochang inhalation toxicity animal testing facility Deadline30 Jul 2026 13840061 Notice on purchase and installation quotation for air conditioning and heating for Dongducheon Shincheon Elementary School gym expansion construction Deadline22 Jul 2026 13840062 (Tentative name) Purchasing and installing air conditioning equipment for the new Daejang 3 Elementary school building construction Deadline23 Jul 2026 13840066 air conditioner Deadline21 Jul 2026 13840067 Notice on submission of quotation for small-value private contract for air conditioning and heating installation work at Gwangju Regional Employment and Labor Office building Deadline21 Jul 2026 13840068 Purchase and installation of government-supplied materials for Buk-gu Vocational Rehabilitation Center Green Remodeling Project (GHP air conditioner) Deadline24 Jul 2026 13840079 Stand air conditioner assembly line renovation work Deadline21 Jul 2026 13840080 Basic education building remodeling and expansion work Purchase and installation of air conditioners (government-supplied) Deadline24 Jul 2026 13840081 Replacement of old air conditioner in College of Engineering Building No. 5 Deadline24 Jul 2026 13840082 Purchase of mechanical equipment construction equipment (air conditioner) for air conditioning improvement at Haneulnaerin Kindergarten Deadline23 Jul 2026 13840083 「Jeonju 1st Industrial Complex Cultural Center Construction Project」 Purchase and install air conditioners Deadline23 Jul 2026 13840084 Jecheon Industrial High School Main 4 building cooling and heating improvement mechanical equipment construction, purchase and installation of government-supplied air conditioners Deadline22 Jul 2026 13840085 Purchase and installation of air conditioning improvement for Daegu Ilmeister High School and 1 school (Daegu Technical High School) Deadline24 Jul 2026 13840086 (Innovation) 2026 Engineering Building 7th Floor Environmental Improvement Air Conditioner Replacement Construction Deadline30 Jul 2026 13840102 Purchase and installation of air conditioning and heating at Dongcheon Gymnasium training center Deadline23 Jul 2026 13840103 Purchase and installation of government-supplied materials (air conditioners and heaters) for space restructuring, expansion and renovation work at Hope Grass (continuing expenses) Deadline23 Jul 2026 13840105 Rural Culture and Sports Center Air Conditioner Replacement Deadline23 Jul 2026 13840107 Purchase and installation of government-supplied materials (air conditioner EHP) for the Incheon Integrated Veterans Hall construction project (machinery) Deadline24 Jul 2026 13840269 Sinbuk-eup Yupo 3-ri senior center new construction (electrical) Deadline22 Jul 2026 13840272 [Architectural Engineering Major] 2026 New Faculty Research Environment Creation Project Equipment Purchase (BECMS) Deadline22 Jul 2026 13840273 Press-welding tool for manufacturing actual aircraft cargo door skin-frame structures Deadline15 Jul 2026 13840274 Changnyeong Haman Weir Small Hydro #4 Outflow Sluice and Lifting Equipment Repair Work Deadline23 Jul 2026 13840275 Andong Dam water quality observation station equipment improvement, manufacturing, purchase and installation Deadline23 Jul 2026 13840278 Supervision service for Uzbekistan intellectual property rights public administration information system improvement project Deadline25 Aug 2026 13840377 Lightning protection equipment improvement electrical work in Gwangjin Middle School Deadline22 Jul 2026 13840385 Uiwang Wolam Construction - Low Noise Drainable Ascon Deadline22 Jul 2026 13840386 Suwanhana Middle School sidewalk block paving work Deadline22 Jul 2026