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2022 AOAC SEA Section 1st Annual Conference Program

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8:30 – 9:30

Oct 12, 2022


9:30 – 9:45

Oct 12, 2022

Opening Speech

Dr. Xinping Hou

President of AOAC SEA

Xinping Hou is currently the analytical service manager at BV-AQ Singapore, where she provides technical consultation and develops analytical service strategies for the organization to support the industries on their innovation, process improvement and product quality control. Prior to BV-AQ, She had been working in other contract research and testing laboratories as technical manager and operation director for food and pharmaceutical product analysis.

She has been a member of AOAC International since 2016. She has participated AOAC SPIFAN program and led the setup of many AOAC methods in the laboratory.

She has been appointed by Singapore Accreditation Council (SAC) as the technical auditor for food and pharmaceutical laboratory accreditation since 2003.

She has a bachelor and master’s degree in analytical chemistry and got her PhD in Chemistry from National University of Singapore. She is (co)author of more than 10 scientific publications.

9:45 – 10:00

Oct 12, 2022


David Schmidt

Executive Director



Dave was appointed as Executive Director by AOAC INTERNATIONAL’s Board of Directors effective May 1, 2018. Prior to joining AOAC, he was principal consultant for Schmidt Commonwealth Strategies, LLC. From 2006 to 2015, he served as president and Chief Executive Officer (CEO) of the International Food Information Council (IFIC) and CEO of the IFIC Foundation in Washington, DC. He joined IFIC in 1993 and held positions from Director to Executive Vice President prior to being elected CEO. Dave also served as the first Bush Administration’s director of external affairs for USDA’s Food Safety and Inspection Service where he addressed food safety and nutrition issues and managed the inspection agency’s media, legislative, and consumer education programs. He also gained a thorough understanding of the food industry in previous sales positions with Oscar Mayer Foods, Pepsi-Cola USA, and Canada Dry Corp. He holds a B.A. in Business Administration from Vanderbilt University and completed graduate business studies at the University of New Orleans. He has also served the Town of Leesburg, Virginia, as a town council member.


While we have emerged from the global pandemic, AOAC INTERNATIONAL has maintained its momentum in progress on its strategy.  Dave Schmidt will provide an organizational overview of updates and accomplishments to date, a focus on our growing network of sections and the outlook for additional AOAC network collaboration through next year.

10:00 – 10:15

Oct 12, 2022

AOAC INTERNATIONAL Global Program Update

Mary Kay Krogull


Sr. VP Business Administration Food NA, Eurofins Scientific


Ms. Krogull holds a BS in Biology and an MS in Food Chemistry from the UW-Madison (and all but dissertation towards a PhD).  Mary Kay is currently the Sr. VP of Business Administration at Eurofins.  Mary Kay is responsible for Business administration for the Food and Feed businesses across North America and is the Sr. leader of the Canadian Cannabis laboratory. Previously Mary Kay worked for 4 years as President of Eurofins Scientific, Inc. Food US.

Prior to joining Eurofins, Mary Kay worked in multiple executive level positions at Covance Laboratories including VP of Business Operations Global Early Development, VP of Global QA Global Early Development, Global Sr. Director of Lean Six Sigma and a Certified Master Black belt, Director of Bioanalytical Testing  and Manager of the Food Chemistry Division. Notable is her 3 years as Director of the Pharmaceutical Testing Division for Covance, a Division of LabCorp, one of the largest Contract Research and Medical testing companies in the world, where she directed the start-up of the GMP Pharmaceutical Testing Division. Under Mary Kay’s leadership, the Pharmaceutical Testing Division grew from $0 to $10M in sales in 3 years.

In her current role, Mary Kay leads a team of 11 direct staff to manage the business aspects of the Food and Feed Testing, including IT, QA, acquisitions and real estate, on boarding of large complex multi-site projects, managing the Chief Scientific Officers and engaging with the technical community in the marketplace. Mary Kay facilitates the High Potential training program for new Business Unit Managers for the Eurofins Food groups and acts as a mentor for other business managers. Mary Kay lives in Madison WI. When not working, Mary Kay likes to travel, read mysteries and spend time with family and friends.  Mary Kay is Secretary/Treasurer of the BOD for A2LA and serves as Treasurer for BOD of AOAC. She is a member of the IFT, IAFP, AOCS, and co-chair of the ACIL Regulatory Committee.


Mary Kay Krogull will present an update on the new Board of Directors of AOAC INTERNATIONAL for 2023.  She will also present a series of updates and accomplishments to date on global programs that are underway or initiating in 2022/2023 that may impact or benefit members of the Southeast Asia Section. These updates will include items on harmonization of standards, current projects in the region, trade issues, updates on methods accepted by Codex, etc.

10:15 – 12:45

Oct 12, 2022

Keynote Speech

1. KOL 1 (Regional / Local Regulatory Authority)

2. KOL 2 (Regional KOL) — Local Regulatory Authority Requirements on Food Safety and Impacts on Analytical Methods


Ms. Angela Li

Director, Research & Exposure Science Department



Angela is the director of Research and Exposure Science Department under the National Centre for Food Science (NCFS) in the Singapore Food Agency (SFA). Her department comprises of two branches (i) Applied Research and Collaboration and (ii) Exposure and Data Science. The applied research strategies include anticipating food safety risks through early detection of food safety concerns and advancing rapid testing capabilities. The exposure and data science branch leads the risk-based market monitoring programme and harnesses data analytics to obtain pre-emptive insights on hazards in food with which to proactively track food safety trends and anticipate new/emerging foodborne hazards and risks.

Dr. Pravate Tuitemwong

President, AOAC Thailand Section

Director, Food Safety Center, KMUTT


Dr. Pravate Tuitemwong is an Associate Professor in Food Science and Technology at King Mongkut’s University Thonburi (KMUTT). He received his BS and MS in Microbiology from Kasetsart University and had experienced industry works for several years. He completed Ph.D. in Food Science from Kansas State University, Manhattan, Kansas, USA.

His areas of interest are Microbial Food Safety and Rapid Detection in Microbiology. Dr. Tuitemwong served as Director of Food Safety Center and Deputy Director of Academics for the Institute for Scientific and Technological Research and Services (ISTRS), which provides directed and contract research services, training, consulting, testing, and certification services to Thailand and regional industries. Dr. Tuitemwong also served as the president of AOAC International Thailand Section during 2013-2016 and 2020-2022. He has been active in Microbial Food Safety Management and Controls for more than 30 years. Dr. Tuitemwong has served in many organizations including Thailand subcommittee of the ASEAN Food Testing Laboratory Committee (AFTLC). His industry experience in consulting, auditing, and doing research to solve industry problems made him the speaker/researcher in this field and also practitioner in this regard. He has more than 100 publications in local and regional journals and conferences, and more than 40 international research papers in Food Microbiology, Rapid Methods in Microbiology, and Food Safety Management and Controls.


Thailand has been active in food safety control legislation due to the highly diverse food culture that leads to various food safety issues and requires solutions with country specific approaches to provide the best safety/quality foods to the world market. This presentation gathers information on current regional/local authority requirements on food safety implementation/certification from farm to table. Several local requirement as well as revised international standards such as ISO9001:2015; ISO22000:2018, Good Hygiene Practice (GHP), the US Food Safety Modernization Acts (FSMA): Preventive Control of Human Food (PCHF), have affected these changes. These schemes required rapid and accurate testing to work with. New methods are introduced including molecular typing, non-cultured, non-contact and non-destructive methods to meet industry demands. Firms, as well as research agencies in private, governmental, and academic organizations have developed own test kits to replace current cumbersome conventional methods for their specific used in order to control food production chain for safety. Locally developed methods required local validation for primary approval. Some methods for quality control purpose still needs proper validation as required by ISO17025. AOAC Sections should be instrumental in these activities that include method validation development training and establishing joint organization with AOAC International to support in this activity in the future.

Tea Break


Introduction of AOAC Southeast Asia Section

Dr. Xinping Hou

President, AOAC SEA Section

Analytical Service Manager SEA, BV-AQ

Xinping Hou is currently the analytical service manager at BV-AQ Singapore, where she provides technical consultation and develops analytical service strategies for the organization to support the industries on their innovation, process improvement and product quality control. Prior to BV-AQ, She had been working in other contract research and testing laboratories as technical manager and operation director for food and pharmaceutical product analysis.

She has been a member of AOAC International since 2016. She has participated AOAC SPIFAN program and led the setup of many AOAC methods in the laboratory.

She has been appointed by Singapore Accreditation Council (SAC) as the technical auditor for food and pharmaceutical laboratory accreditation since 2003.

She has a bachelor and master’s degree in analytical chemistry and got her PhD in Chemistry from National University of Singapore. She is (co)author of more than 10 scientific publications.

AOAC Method Validation / SMPR

Darryl Sullivan


Chief Scientific Officer, Eurofins Scientific

Darryl Sullivan is the Chief Scientific Officer for Eurofins Scientific.  Mr. Sullivan acts as a consultant for companies who need help meeting scientific and regulatory requirements. In this role he is often called upon as an expert witness for litigation and dispute resolution. He is considered an international expert in the analysis of infant formula and dietary supplements and represents Eurofins in many areas of the scientific community.  Mr. Sullivan is a delegate to Codex Alimentarius and actively participates in the Codex Nutrition Committee (CCNFSDU) and the Methods Committee (CCMAS).

Mr. Sullivan has more than 40 years of experience in testing of infant formula, dietary supplements and food. He is considered to be an expert in the field of validation of analytical methods, having served for three years as Chair of the AOAC INTERNATIONAL Official Methods Board.  He is the Past President and Secretary of the AOAC INTERNATIONAL Board of Directors, and was the Chair of the AOAC Stakeholder Panels on Infant Formula, Adult Nutritionals, and Dietary Supplements.  Mr. Sullivan is member of the IFT Board of Directors. He is a past member of the USP Expert Committee for Dietary Supplements.  Mr. Sullivan has developed and validated hundreds of analytical methods in the areas of nutrient and residue testing, and is the author of more than 75 publications and 100’s of scientific presentations.

Contaminant Testing – Method Uncertainty and Regulation Compliance

Dr. Erik Konings

Program Manager

Nestlé Institute of Food Safety and Analytical Sciences

Erik Konings is Program Manager at the Nestlé Institute of Food Safety and Analytical Sciences in Lausanne, Switzerland where he provides leadership to global quality, laboratory and regulatory teams to engage in strategic local activities to drive alignment/harmonization of analytical methods and partners with government and non-government organizations in the development of standards for analytical methods.

He is active within AOAC INTERNATIONAL (Past-President), the International Organization for Standardization (ISO) (Chair ISO TC 34, Working Group 14 on Vitamins, carotenoids and other nutrients), the European Committee for Standardization (CEN) (Chair CEN TC 275 Working group 9 on Vitamins and carotenoids), and the International Dairy Federation (IDF). He participates in the Codex Committee on Methods of Analysis and Sampling (CCMAS).

He studied higher professional laboratory education with majors in Analytical and Clinical chemistry holds an MSc degree in Epidemiology and a PhD in Health Sciences of Maastricht University, the Netherlands (2001). He is (co)author of more than 40 scientific publications.

13:00 – 14:00

Oct 12, 2022


14:00 – 16:30

Oct 12, 2022

Towards harmonised methods for determining MOSH/MOAH in challenging food matrices

Dr. Stefanka Bratinova

Analytical Chemist

Joint Research Centre (JRC), European Commission


Analytical Chemist with background in environmental and food chemistry

Scientific Project Officer at the European Union Reference Laboratory (EURL), Joint Research Center (JRC) -Geel.

From 2004 to 2010 I worked on temporary contracts at the EURL-Food Contact Materials (FCM) in Ispra, Italy. From 2012 I joined the Unit of Food safety at JRC-Geel, Belgium, with focus on analyses of contaminants (PAH and Mycotoxins) for the EURLs functioning in the JRC at that time. After JRC seized to operate these two EURLs on decision from the JRC Management, I returned back to EURL-FCM activities.

My expertise is in the field of method validation via collaborative trials, proficiency testing and operation of an EURL via networking with the NRLs and OCLs in the respective fields.

During the past 5 years my activities withing the team were focused on managing the project on the analyses of mineral oils from food and FCMs. The role of EURL team was to coordinate the knowledge available in that field and to propose general performance criteria for the methods to be used for the monitoring and the way of reporting results to European Food Safety Authority (EFSA).


The analysis of MOH in food, especially in food with a high fat content, is very demanding in terms of analytical methodology and interpretation of chromatograms. In November 2019, a dispute emerged related to published data on MOAH in infant formula and follow-on formula (IF). The comparability and thus reliability of the results from different analytical procedures applied by laboratories to monitor the MOAH content in IF was in question.

The European Union Reference Laboratory for Food Contact Materials (EURL FCM) identified the need for a fully harmonised analytical method to be characterised with respect to its performance and further standardisation. This was also recognised by all stakeholders (European Commission, official control laboratories, non-governmental organisations and commercial laboratories).

The presentation will summarise the current achievements from this project including:

  • – A roundtable discussion with all stakeholders;
  • – An exploratory review and trial of the variety of experimental procedures applied;
  • – Cooperation with stakeholders for the preparation of suitable test materials for collaborative trials;
  • – Organisation of a pre-trial for the evaluation of the draft Standard Opertating Procudure (SOP) and familiarisation of the labs with it;
  • – Identification of the need and conducting two additional ring trials on characterisation of a MOSH/MOAH in a mineral oil and on integration;
  • – Overview of the draft results from the recent full collaborative trial for establishing the performance characteristics of a SOP for determination of the MOAH in IF.

MOAH and MOSH — Analytical challenges and solution

Dr. Bao Lei

Senior Expert

Nestlé Food Safety Institute of China

Dr. Lei Bao is currently Senior expert of Nestle Food Safety Institute. Before that, she is the Director and Scientific leader of Food Safety Laboratory at General Administration of Quality Supervision, Inspection and Quarantine of People’s Republic of China (AQSIQ)/Shandong Branch. She received her Ph.D. from College of Marine Life Science, Ocean University of China in 2009.

Bao held various scientific positions including Board Director of AOAC INTERNATIONAL; President, China section of AOACI. Committee Member of JECFA (Joint FAO/WHO Expert Committee on Food Additives and Contaminants); Chair of the Joint Asian Sections Committee, and editorial Board Member, Journal of AOAC INTERNATIONAL & World Mycotoxin Journal;  the international expert for ISO/TC34/SC4 Mycotoxin Working Group, IDF Standing Committee on Analytical Methods for Additives and Contaminants (SCAMAC); Chinese Delegation Member for the Codex Committee on Food Contaminants (CCCF) at the fifth and sixth sessions; Senior Advisor, Committee for Food Safety Standardization, AQSIQ, China; Chengdu FDA Food Safety Experts Committee Member, Shandong Public Security Bureau Food Safety Experts Committee Member.

Bao received award as “AOAC 2018 Official Methods Board (OMB) Award for Achievement in Technical and Scientific Excellence”, “Award for 2018 China food safety innovation technology and practice”, “Outstanding expert for publicity national food safety law in China in 2016”, AOAC 2014 Multi-Laboratory Study of the Year (Chemistry), 2013 China Standardization Honor of the Year, 2012 Fellow of AOAC INTERNATIONAL and 2011 Outstanding Scientists Award, AQSIQ, China. 

Tea Break


Food Safety Reference Materials

Dr. TRAN Cao Son

Deputy Director

National Institute of Food Control (NIFC), Vietnam

Dr. Tran Cao Son is the Deputy Director of the National Institute for Food Control (NIFC), Ministry of Health of Vietnam. Dr. Tran graduated from Hanoi University of Pharmacy in 2005. He received a Ph.D. in Toxicology and Drug Testing at Hanoi University of Pharmacy in 2015. He has spent more than 15 years working in laboratories with modern analytical instruments such as liquid chromatography, gas chromatography, mass spectrometry, … and their applications in food safety testing and pharmacokinetic study. He has vast experience in laboratory management following ISO/IEC 17025 standard. He has participated in numerous international and national laboratory assessment programs. He has been a member of the ASEAN Food Testing Laboratory Committee (AFTLC) since 2017 and chaired this committee from 2018 to 2020. He has published numerous scientific articles in national and international publications on analytical method development and validation, food control, risk assessment, toxicology, and pharmacokinetics study. He is now the Editor-in-chief of the Vietnam Journal of Food Control (VJFC).

16:30 – 17:00

Oct 12, 2022

Panel Discussion


18:00 – 20:00

Oct 12, 2022

Gala Dinner


9:00 – 12:45

Oct 13, 2022

Mycotoxin testing — Simultaneous mycotoxin testing and method harmonization

Dr. Martien C. Spanjer

Senior Inspector

Dutch Food and Consumer Protection Authority

Martien Spanjer achieved a PhD in analytical chemistry at Utrecht University, the Netherlands. He started to work in the Food Safety area in 1986 at the Food Inspection Service in Alkmaar, as head of the general chemistry department. At that time only aflatoxin was analyzed in nuts by thin layer chromatography. In 16 years’ time this topic was evaluated into analyzing 35 mycotoxins by LC-MS, nowadays even 55 compounds in this multimethod. Meanwhile he moved to the Headquarters of the Netherlands Food and Consumer Product Safety Authority of the Netherlands where he is responsible for expertise of mycotoxins and plant toxins, enforcement, surveillance and control programs and import control. He is convenor of the European Normalization working group on Biotoxins, which harmonized some 20 analytical methods regarding mycotoxins, including multi methods. He is (co)author of 18 papers, 4 book chapters and 2 EFSA project reports regarding sampling and analysis. He is also editorial board member of the World Mycotoxin Journal and editor-in-chief of the Food Additives and Contaminants part B journal.

Food Safety Microbiology Testing

Dr. CHAI Lay Ching

Associate Professor, Head

Center for Research Services, University of Malaysia

Associate Prof Dr Chai Lay Ching is a microbiologist and lecturer at University of Malaya. She is the Chair of the Young Scientists Network-Academy of Sciences Malaysia (YSN-ASM) that represents top young researchers in the country who are committed to contribute to the national ecosystem beyond their individual research interests. Part of her role includes engaging young academics in the country to rethink their role in shaping higher education for the future. Dr Chai’s research focuses on infectious microorganisms, food safety and microbiological risk assessment. Dr Chai served as the Vice Chair of the Technical Working Group of Microbiology under the Food Analysis Committee (JKAM) chaired by the Department of Chemistry Malaysia from 2016-2020; and is listed as the Malaysian expert on microbial risk assessment in the ASEAN Risk Assessor Directory. Also, she leads numerous academia-industry projects, such as serving as key opinion leaders of 3M Asia Pacific, food safety research with Kikkoman Japan and other local food manufacturers. Her active contribution and involvement in microbiological safety research has won her the Malaspina International Award by the International Life Science Institute (ILSI) in 2017; and she is currently serving as the scientific advisor of ILSI South East Asia Region providing guidance and advice on food safety risk assessment. Dr Chai is also involved in promoting biosafety and biosecurity in Malaysia. She was selected and provided a fellowship to participate in the United Nations Office for Disarmament Affairs (UNODA) Global South Biosecurity Diplomacy Workshop in Switzerland in 2019. Her research and leadership in promoting research integrity, inclusivity and excellence has been recognised through multiple awards such as the L’Oréal-UNESCO Women in Science Award in 2018, Marie Claire’s Amazing Woman in Malaysia 2019, Prestige’s 40 under 40 Malaysia 2019 and the Asian Women Entrepreneurs Leadership Award 2019.

Achieving comparability on determination of veterinary drug residues in food to support realization of metrological traceability

Ms. CHEOW Pui Sze

Consultant Analytical Scientist

Chemical Metrology Division, HSA Singapore

Ms Cheow Pui Sze obtained her MSc (Chemistry) degree from the National University of Singapore in 2008. She joined the Chemical Metrology Laboratory in HSA in early 2009 as a Scientist in the Organic Chemistry Section. Over the years, she has been actively involved in developing capabilities on purity assessment of organic compounds, measurement of food additives & contaminants in different food matrices, and organic contaminants in fuel oil. Pui Sze is currently a Consultant Analytical Scientist with HSA and heads both the Organic Chemistry Section and Statistical Unit within the Chemical Metrology Laboratory. Till date, she has participated in 14 regional and international comparisons together with the team, with a focus on food safety. Most of the capabilities demonstrated in these comparisons have been implemented in real services to local and overseas laboratories such as organisation of accuracy-based proficiency testing (PT) programmes and production of certified reference materials (CRMs) in compliance with ISO/IEC 17043 and ISO 17034, respectively. She is the anchoring Trainer for HSA statistics courses such as method validation, measurement uncertainty, statistics used in the certification of CRMs and organisation of PT programmes. Pui Sze is Singapore Accreditation Council’s Technical Assessor/Expert and serves as a member of the Working Group for Testing/Calibration and Inspection under the Singapore Standards Council. She is currently serving as a member in ISO/CASCO Working Group (WG) 57 on Conformity assessment — General requirements for proficiency testing and ISO/TC 334 WG 16 on Reference Material Value Assignment.  

Tea Break


PFAS in Drinking Water



Coming soon

How 3-MCPD and GE enter food supply chain and mitigation actions –voice from vegetable oil producers

Mr. Mark Alton

Special Nutrition Category APAC Lead



Mark joined Cargill in 2016 firstly in the role of FSQR regional lead and is now the Special Nutrition and Dairy Category Lead for APAC based in Melbourne Australia. He is a specialist in food safety management within the APAC food industry. Mark has a Bachelor of Science (Biochemistry & Chemistry) and a MBA (Marketing); with more than 30 years’ experience within the food and beverage industry. He holds professional memberships with the AIFST (Australian Institute of Food Science and Technology).

He has worked in senior regional roles with Cargill, Nestle & AssureQuality  over the last 15 years mostly based in Singapore.

Presentation Overview

3-MCPD & GE are important contaminants which are carcinogenic. Even though they are mentioned together they do not equal each other.

They have different precursors and formation temperatures. The mitigation techniques and critical processing steps differ so they need to be considered independently.

It is important to understand to select the right combination of mitigation strategies as this is dependent on the required 3-MCPD/GE level as well as other targeted contaminants and quality, some may act in antagonistic manner.

AOAC 3-MCPD/GE methods and the status / challenges for official control implementation

Dr. Lin Qi

Senior Lead

Analytical Research, Abbott Nutrition

Qi Lin is Senior Manager at the Abbott Nutrition Research & Development Pacific Asia Centre, Singapore. She leads the Analytical Research function to provide analytical solutions to new nutritional product development, pre-clinical and clinical study, product Quality Assurance, regulatory and IP for countries in the region. She leads research on analytical science and food chemistry, and development of test methods for nutrients, contaminants, physical characterization, and bioanalysis.

She joined AOAC International since 2013 and has participated in AOAC SPIFAN program via summitting nutrient test method and joining working group.

She holds a PhD degree in Organic Chemistry from University of Wisconsin – Madison, USA. She is (co)author of more than 20 scientific publications and patents.

12:45 – 14:00

Oct 13, 2022


14:00 – 16:40

Oct 13, 2022

Student Award Ceremony


Young Scientists Session — Invited Speech

Zaiton Binti Abdul Majid

Associate Professor, Dean

Faculty of Science, Universiti Teknoloji Malaysia

Dr Zaiton Abdul Majid is a Professor of Chemistry at the Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia.  She obtained her BSc and MSc in Chemistry from Western Illinois University, United States and PhD in Civil Engineering from Universiti Malaya. She is currently the Dean, Faculty of Science, UTM, an Associate Member of Academy of Sciences,  Malaysia since 2018, member of the Malaysian Institute of Chemistry (IKM), ANALIS, and American Chemical Society. She was one of the four recipients, and the first from Asia, to be awarded the Lise Meitner Guest Professorship Award, Lund University, Sweden in 2014. She was also a Visiting Scientist at Kyoto University in 1993, 2013 and 2015. She was appointed as a Technical committee (under Department of Standards Malaysia) for the Standards and Metrology Institute for Islamic Countries (SMIIC),Turkey (2017-2019).

Her research focuses on 2 main areas of waste utilization, i.e. i) development of sorbents from waste, specifically focusing on separation-sorption technology in water treatment and ii) utilization of waste as cement additives, particularly focusing on their effect cement hydration reactions.  Her research are multi disciplinary in nature with collaborators from science and engineering  background.

She is a member of the National STEM Association  Malaysia (NSA) and  is actively involved in promoting STEM at the national level for the community especially schools and preschool under KEMAS. Together with UTM, State Department of Education and NSA, she is actively involved in promoting STEM especially to  children and youth in an effort to increase the number of enrolment of Malaysian students in STEM streams and empower our children and youth with quality STEM education.

Student Award Presentation 1


Student Award Presentation 2


Tea Break


Student Award Presentation 3


16:40 – 17:00

Oct 13, 2022

Closing Session